diff options
20 files changed, 4655 insertions, 0 deletions
diff --git a/target/linux/xburst/config-3.8 b/target/linux/xburst/config-3.8 new file mode 100644 index 0000000..d790796 --- /dev/null +++ b/target/linux/xburst/config-3.8 @@ -0,0 +1,300 @@ +CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y +CONFIG_ARCH_DISCARD_MEMBLOCK=y +CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y +CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y +CONFIG_ARCH_HIBERNATION_POSSIBLE=y +CONFIG_ARCH_REQUIRE_GPIOLIB=y +CONFIG_ARCH_SUSPEND_POSSIBLE=y +CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y +# CONFIG_ARPD is not set +CONFIG_BATTERY_JZ4740=y +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_BRIDGE is not set +CONFIG_CHARGER_GPIO=y +CONFIG_CONSOLE_TRANSLATIONS=y +CONFIG_CPU_GENERIC_DUMP_TLB=y +CONFIG_CPU_HAS_PREFETCH=y +CONFIG_CPU_HAS_SYNC=y +CONFIG_CPU_LITTLE_ENDIAN=y +CONFIG_CPU_MIPS32=y +CONFIG_CPU_MIPS32_R1=y +CONFIG_CPU_MIPSR1=y +CONFIG_CPU_R4K_CACHE_TLB=y +CONFIG_CPU_R4K_FPU=y +CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y +CONFIG_CPU_SUPPORTS_CPUFREQ=y +CONFIG_CPU_SUPPORTS_HIGHMEM=y +CONFIG_CRC16=y +CONFIG_CRYPTO_CRC32C=y +CONFIG_CRYPTO_DEFLATE=y +CONFIG_CRYPTO_HASH=y +CONFIG_CRYPTO_HASH2=y +CONFIG_CRYPTO_LZO=y +CONFIG_CRYPTO_XZ=y +CONFIG_DEVMEM=y +CONFIG_DMA_NONCOHERENT=y +CONFIG_DUMMY_CONSOLE=y +CONFIG_EARLY_PRINTK=y +CONFIG_ENABLE_MUST_CHECK=y +CONFIG_EXT4_FS=y +CONFIG_FAT_FS=y +CONFIG_FB=y +CONFIG_FB_JZ4740=y +CONFIG_FB_SYS_COPYAREA=y +CONFIG_FB_SYS_FILLRECT=y +CONFIG_FB_SYS_IMAGEBLIT=y +# CONFIG_FB_WMT_GE_ROPS is not set +CONFIG_FONTS=y +# CONFIG_FONT_10x18 is not set +CONFIG_FONT_6x11=y +# CONFIG_FONT_7x14 is not set +# CONFIG_FONT_8x16 is not set +# CONFIG_FONT_8x8 is not set +# CONFIG_FONT_ACORN_8x8 is not set +# CONFIG_FONT_MINI_4x6 is not set +# CONFIG_FONT_PEARL_8x8 is not set +# CONFIG_FONT_SUN12x22 is not set +# CONFIG_FONT_SUN8x16 is not set +CONFIG_FORCE_MAX_ZONEORDER=12 +CONFIG_FRAMEBUFFER_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set +# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set +CONFIG_FREEZER=y +CONFIG_FS_MBCACHE=y +CONFIG_GENERIC_ATOMIC64=y +CONFIG_GENERIC_CLOCKEVENTS=y +CONFIG_GENERIC_CLOCKEVENTS_BUILD=y +CONFIG_GENERIC_CMOS_UPDATE=y +CONFIG_GENERIC_GPIO=y +CONFIG_GENERIC_IO=y +CONFIG_GENERIC_IRQ_CHIP=y +CONFIG_GENERIC_IRQ_SHOW=y +CONFIG_GENERIC_SMP_IDLE_THREAD=y +CONFIG_GPIOLIB=y +# CONFIG_HAMRADIO is not set +CONFIG_HARDWARE_WATCHPOINTS=y +CONFIG_HAS_DMA=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y +CONFIG_HAVE_ARCH_JUMP_LABEL=y +CONFIG_HAVE_ARCH_KGDB=y +CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y +CONFIG_HAVE_CLK=y +CONFIG_HAVE_C_RECORDMCOUNT=y +CONFIG_HAVE_DEBUG_KMEMLEAK=y +CONFIG_HAVE_DMA_API_DEBUG=y +CONFIG_HAVE_DMA_ATTRS=y +CONFIG_HAVE_DYNAMIC_FTRACE=y +CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y +CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y +CONFIG_HAVE_FUNCTION_TRACER=y +CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y +CONFIG_HAVE_GENERIC_DMA_COHERENT=y +CONFIG_HAVE_GENERIC_HARDIRQS=y +CONFIG_HAVE_IDE=y +CONFIG_HAVE_IRQ_WORK=y +CONFIG_HAVE_KERNEL_BZIP2=y +CONFIG_HAVE_KERNEL_GZIP=y +CONFIG_HAVE_KERNEL_LZMA=y +CONFIG_HAVE_KERNEL_LZO=y +CONFIG_HAVE_MEMBLOCK=y +CONFIG_HAVE_MEMBLOCK_NODE_MAP=y +CONFIG_HAVE_MOD_ARCH_SPECIFIC=y +CONFIG_HAVE_NET_DSA=y +CONFIG_HAVE_OPROFILE=y +CONFIG_HAVE_PERF_EVENTS=y +# CONFIG_HIGH_RES_TIMERS is not set +CONFIG_HW_CONSOLE=y +CONFIG_I2C=y +CONFIG_I2C_BOARDINFO=y +CONFIG_INPUT=y +CONFIG_INPUT_EVDEV=y +CONFIG_INPUT_KEYBOARD=y +CONFIG_INPUT_MOUSE=y +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +CONFIG_INPUT_UINPUT=y +CONFIG_IRQ_CPU=y +CONFIG_IRQ_DOMAIN=y +CONFIG_IRQ_FORCED_THREADING=y +CONFIG_JBD2=y +CONFIG_JZ4740_QI_LB60=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_UNCOMPRESSED is not set +CONFIG_KERNEL_GZIP=y +CONFIG_KEXEC=y +# CONFIG_KEYBOARD_GPIO is not set +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=2 +CONFIG_LZO_COMPRESS=y +CONFIG_LZO_DECOMPRESS=y +CONFIG_MACH_JZ4740=y +CONFIG_MFD_CORE=y +CONFIG_MFD_JZ4740_ADC=y +CONFIG_MIPS=y +CONFIG_MIPS_CPUFREQ=y +CONFIG_MIPS_FPU_EMU=y +# CONFIG_MIPS_HUGE_TLB_SUPPORT is not set +CONFIG_MIPS_L1_CACHE_SHIFT=5 +# CONFIG_MIPS_MACHINE is not set +CONFIG_MIPS_MT_DISABLED=y +# CONFIG_MIPS_SEAD3 is not set +CONFIG_MMC=y +CONFIG_MMC_BLOCK=y +# CONFIG_MMC_BLOCK_BOUNCE is not set +CONFIG_MMC_JZ4740=y +CONFIG_MMC_UNSAFE_RESUME=y +CONFIG_MODULES_USE_ELF_REL=y +# CONFIG_MOUSE_BCM5974 is not set +CONFIG_MOUSE_PS2=y +# CONFIG_MOUSE_PS2_ALPS is not set +# CONFIG_MOUSE_PS2_ELANTECH is not set +# CONFIG_MOUSE_PS2_LOGIPS2PP is not set +# CONFIG_MOUSE_PS2_SYNAPTICS is not set +# CONFIG_MOUSE_PS2_TOUCHKIT is not set +# CONFIG_MOUSE_PS2_TRACKPOINT is not set +# CONFIG_MOUSE_SERIAL is not set +# CONFIG_MOUSE_VSXXXAA is not set +# CONFIG_MTD_CFI is not set +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +CONFIG_MTD_NAND=y +CONFIG_MTD_NAND_ECC=y +CONFIG_MTD_NAND_JZ4740=y +# CONFIG_MTD_SM_COMMON is not set +CONFIG_MTD_UBI=y +CONFIG_MTD_UBI_BEB_LIMIT=20 +# CONFIG_MTD_UBI_FASTMAP is not set +# CONFIG_MTD_UBI_GLUEBI is not set +CONFIG_MTD_UBI_WL_THRESHOLD=4096 +CONFIG_NEED_DMA_MAP_STATE=y +CONFIG_NEED_PER_CPU_KM=y +# CONFIG_NETWORK_FILESYSTEMS is not set +# CONFIG_NET_SCHED is not set +# CONFIG_NEW_LEDS is not set +CONFIG_NLS=y +CONFIG_NLS_ASCII=y +CONFIG_NLS_CODEPAGE_1250=y +CONFIG_NLS_CODEPAGE_1251=y +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_CODEPAGE_737=y +CONFIG_NLS_CODEPAGE_775=y +CONFIG_NLS_CODEPAGE_850=y +CONFIG_NLS_CODEPAGE_852=y +CONFIG_NLS_CODEPAGE_855=y +CONFIG_NLS_CODEPAGE_857=y +CONFIG_NLS_CODEPAGE_860=y +CONFIG_NLS_CODEPAGE_861=y +CONFIG_NLS_CODEPAGE_862=y +CONFIG_NLS_CODEPAGE_863=y +CONFIG_NLS_CODEPAGE_864=y +CONFIG_NLS_CODEPAGE_865=y +CONFIG_NLS_CODEPAGE_866=y +CONFIG_NLS_CODEPAGE_869=y +CONFIG_NLS_CODEPAGE_874=y +CONFIG_NLS_CODEPAGE_932=y +CONFIG_NLS_CODEPAGE_936=y +CONFIG_NLS_CODEPAGE_949=y +CONFIG_NLS_CODEPAGE_950=y +CONFIG_NLS_ISO8859_1=y +CONFIG_NLS_ISO8859_13=y +CONFIG_NLS_ISO8859_14=y +CONFIG_NLS_ISO8859_15=y +CONFIG_NLS_ISO8859_2=y +CONFIG_NLS_ISO8859_3=y +CONFIG_NLS_ISO8859_4=y +CONFIG_NLS_ISO8859_5=y +CONFIG_NLS_ISO8859_6=y +CONFIG_NLS_ISO8859_7=y +CONFIG_NLS_ISO8859_8=y +CONFIG_NLS_ISO8859_9=y +CONFIG_NLS_KOI8_R=y +CONFIG_NLS_KOI8_U=y +CONFIG_NLS_UTF8=y +CONFIG_PAGEFLAGS_EXTENDED=y +# CONFIG_PDA_POWER is not set +CONFIG_PERCPU_RWSEM=y +CONFIG_PERF_USE_VMALLOC=y +CONFIG_PM=y +CONFIG_PM_CLK=y +# CONFIG_PM_DEBUG is not set +CONFIG_PM_SLEEP=y +CONFIG_POWER_SUPPLY=y +CONFIG_PREEMPT=y +CONFIG_PREEMPT_COUNT=y +# CONFIG_PREEMPT_NONE is not set +CONFIG_PREEMPT_RCU=y +CONFIG_PRINTK_TIME=y +CONFIG_PROC_PAGE_MONITOR=y +# CONFIG_RCU_BOOST is not set +CONFIG_REGMAP=y +CONFIG_REGMAP_I2C=y +CONFIG_REGMAP_MMIO=y +CONFIG_RTC_CLASS=y +# CONFIG_RTC_DRV_CMOS is not set +CONFIG_RTC_DRV_JZ4740=y +# CONFIG_SCSI_DMA is not set +CONFIG_SERIO=y +CONFIG_SERIO_LIBPS2=y +CONFIG_SND=y +CONFIG_SND_COMPRESS_OFFLOAD=y +# CONFIG_SND_EMU10K1_SEQ is not set +CONFIG_SND_JACK=y +CONFIG_SND_JZ4740_SOC=y +CONFIG_SND_JZ4740_SOC_I2S=y +CONFIG_SND_JZ4740_SOC_QI_LB60=y +# CONFIG_SND_OPL3_LIB_SEQ is not set +# CONFIG_SND_OPL4_LIB_SEQ is not set +CONFIG_SND_PCM=y +# CONFIG_SND_RAWMIDI_SEQ is not set +# CONFIG_SND_SBAWE_SEQ is not set +CONFIG_SND_SOC=y +# CONFIG_SND_SOC_ALL_CODECS is not set +CONFIG_SND_SOC_I2C_AND_SPI=y +CONFIG_SND_SOC_JZ4740_CODEC=y +CONFIG_SND_TIMER=y +CONFIG_SOUND=y +# CONFIG_SOUND_OSS_CORE is not set +# CONFIG_SQUASHFS is not set +# CONFIG_STAGING is not set +CONFIG_SUSPEND=y +CONFIG_SUSPEND_FREEZER=y +# CONFIG_SYN_COOKIES is not set +CONFIG_SYS_HAS_CPU_MIPS32_R1=y +CONFIG_SYS_HAS_EARLY_PRINTK=y +CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y +CONFIG_SYS_SUPPORTS_ARBIT_HZ=y +CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y +CONFIG_SYS_SUPPORTS_ZBOOT=y +CONFIG_SYS_SUPPORTS_ZBOOT_UART16550=y +CONFIG_TICK_CPU_ACCOUNTING=y +CONFIG_TINY_PREEMPT_RCU=y +CONFIG_UBIFS_FS=y +CONFIG_UBIFS_FS_ADVANCED_COMPR=y +CONFIG_UBIFS_FS_LZO=y +CONFIG_UBIFS_FS_XZ=y +CONFIG_UBIFS_FS_ZLIB=y +CONFIG_UIDGID_CONVERTED=y +CONFIG_UNINLINE_SPIN_UNLOCK=y +# CONFIG_USB_ARCH_HAS_EHCI is not set +# CONFIG_USB_ARCH_HAS_XHCI is not set +# CONFIG_USB_AUDIO is not set +CONFIG_USB_COMMON=y +CONFIG_USB_ETH=y +# CONFIG_USB_ETH_EEM is not set +# CONFIG_USB_ETH_RNDIS is not set +CONFIG_USB_FUSB300=y +CONFIG_USB_GADGET=y +# CONFIG_USB_JZ4740 is not set +CONFIG_USB_LIBCOMPOSITE=y +CONFIG_USB_SUPPORT=y +CONFIG_VFAT_FS=y +# CONFIG_VGA_CONSOLE is not set +# CONFIG_VLAN_8021Q is not set +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_VT_CONSOLE_SLEEP=y +CONFIG_VT_HW_CONSOLE_BINDING=y +# CONFIG_WATCHDOG is not set +CONFIG_ZONE_DMA_FLAG=0 diff --git a/target/linux/xburst/id800wt/config-3.8 b/target/linux/xburst/id800wt/config-3.8 new file mode 100644 index 0000000..4e20313 --- /dev/null +++ b/target/linux/xburst/id800wt/config-3.8 @@ -0,0 +1,49 @@ +# CONFIG_BACKLIGHT_ADP8860 is not set +# CONFIG_BACKLIGHT_ADP8870 is not set +CONFIG_BACKLIGHT_CLASS_DEVICE=y +CONFIG_BACKLIGHT_GENERIC=y +CONFIG_BACKLIGHT_LCD_SUPPORT=y +CONFIG_BLK_DEV_SD=y +CONFIG_GPIO_SYSFS=y +CONFIG_INPUT_MATRIXKMAP=y +CONFIG_INPUT_TOUCHSCREEN=y +CONFIG_KEYBOARD_GPIO=y +CONFIG_KEYBOARD_MATRIX=y +# CONFIG_LCD_AMS369FG06 is not set +CONFIG_LCD_CLASS_DEVICE=y +CONFIG_LCD_ILI8960=y +# CONFIG_LCD_L4F00242T03 is not set +# CONFIG_LCD_LD9040 is not set +# CONFIG_LCD_LMS283GF05 is not set +# CONFIG_LCD_LTV350QV is not set +# CONFIG_LCD_PLATFORM is not set +# CONFIG_LCD_S6E63M0 is not set +# CONFIG_LCD_TDO24M is not set +# CONFIG_LCD_VGG2432A4 is not set +CONFIG_LOGO=y +CONFIG_LOGO_LINUX_CLUT224=y +CONFIG_LOGO_LINUX_MONO=y +CONFIG_LOGO_LINUX_VGA16=y +CONFIG_REGMAP_SPI=y +CONFIG_SCSI=y +CONFIG_SCSI_DMA=y +CONFIG_SPI=y +CONFIG_SPI_BITBANG=y +CONFIG_SPI_GPIO=y +CONFIG_SPI_MASTER=y +# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set +# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set +# CONFIG_TOUCHSCREEN_BU21013 is not set +# CONFIG_TOUCHSCREEN_DYNAPRO is not set +# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set +# CONFIG_TOUCHSCREEN_MAX11801 is not set +# CONFIG_TOUCHSCREEN_PIXCIR is not set +# CONFIG_TOUCHSCREEN_ST1232 is not set +# CONFIG_TOUCHSCREEN_TSC2005 is not set +# CONFIG_TOUCHSCREEN_TSC_SERIO is not set +CONFIG_USB=y +# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set +# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_HCD_PLATFORM is not set +CONFIG_USB_STORAGE=y diff --git a/target/linux/xburst/n516/config-3.8 b/target/linux/xburst/n516/config-3.8 new file mode 100644 index 0000000..f15e78a --- /dev/null +++ b/target/linux/xburst/n516/config-3.8 @@ -0,0 +1,10 @@ +CONFIG_FB_DEFERRED_IO=y +CONFIG_FB_METRONOME=m +CONFIG_FB_SYS_FOPS=m +CONFIG_HWMON=y +CONFIG_I2C_ALGOBIT=y +CONFIG_LEDS_GPIO=y +CONFIG_MTD_CMDLINE_PARTS=y +CONFIG_NEW_LEDS=y +# CONFIG_SENSORS_JZ4740 is not set +CONFIG_SENSORS_LM75=y diff --git a/target/linux/xburst/n526/config-3.8 b/target/linux/xburst/n526/config-3.8 new file mode 100644 index 0000000..b89d18d --- /dev/null +++ b/target/linux/xburst/n526/config-3.8 @@ -0,0 +1 @@ +CONFIG_I2C_ALGOBIT=y diff --git a/target/linux/xburst/patches-3.8/0001-ubi-Read-only-the-vid-header-instead-of-the-whole-pa.patch b/target/linux/xburst/patches-3.8/0001-ubi-Read-only-the-vid-header-instead-of-the-whole-pa.patch new file mode 100644 index 0000000..26b43d0 --- /dev/null +++ b/target/linux/xburst/patches-3.8/0001-ubi-Read-only-the-vid-header-instead-of-the-whole-pa.patch @@ -0,0 +1,21 @@ +From 73aab29ddc44a3e1a7156473ad5bc9cd80704274 Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen <lars@metafoo.de> +Date: Tue, 15 Mar 2011 12:49:15 +0100 +Subject: [PATCH 01/21] ubi: Read only the vid header instead of the whole + page + +--- + drivers/mtd/ubi/io.c | 2 +- + 1 files changed, 1 insertions(+), 1 deletions(-) + +--- a/drivers/mtd/ubi/io.c ++++ b/drivers/mtd/ubi/io.c +@@ -1019,7 +1019,7 @@ int ubi_io_read_vid_hdr(struct ubi_devic + + p = (char *)vid_hdr - ubi->vid_hdr_shift; + read_err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset, +- ubi->vid_hdr_alsize); ++ UBI_VID_HDR_SIZE + ubi->vid_hdr_shift); + if (read_err && read_err != UBI_IO_BITFLIPS && !mtd_is_eccerr(read_err)) + return read_err; + diff --git a/target/linux/xburst/patches-3.8/0002-Add-jz4740-udc-driver.patch b/target/linux/xburst/patches-3.8/0002-Add-jz4740-udc-driver.patch new file mode 100644 index 0000000..8896d62 --- /dev/null +++ b/target/linux/xburst/patches-3.8/0002-Add-jz4740-udc-driver.patch @@ -0,0 +1,2362 @@ +From 537082e01849ca85227c5b462b8ac9aceb11b77a Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen <lars@metafoo.de> +Date: Sat, 24 Apr 2010 12:18:46 +0200 +Subject: [PATCH 02/21] Add jz4740 udc driver + +History: +- driver by Ingenic +- patch by Lars-Peter Clausen. +- updated to 3.1 by Maarten ter Huurne +--- + drivers/usb/gadget/Kconfig | 8 + + drivers/usb/gadget/Makefile | 1 + + drivers/usb/gadget/gadget_chips.h | 3 + + drivers/usb/gadget/jz4740_udc.c | 2199 +++++++++++++++++++++++++++++++++++++ + drivers/usb/gadget/jz4740_udc.h | 101 ++ + 5 files changed, 2312 insertions(+), 0 deletions(-) + create mode 100644 drivers/usb/gadget/jz4740_udc.c + create mode 100644 drivers/usb/gadget/jz4740_udc.h + +--- a/drivers/usb/gadget/Kconfig ++++ b/drivers/usb/gadget/Kconfig +@@ -191,6 +191,14 @@ config USB_FUSB300 + help + Faraday usb device controller FUSB300 driver + ++config USB_JZ4740 ++ tristate "JZ4740 UDC" ++ depends on MACH_JZ4740 ++ select USB_GADGET_DUALSPEED ++ help ++ Select this to support the Ingenic JZ4740 processor ++ high speed USB device controller. ++ + config USB_OMAP + tristate "OMAP USB Device Controller" + depends on ARCH_OMAP1 +--- a/drivers/usb/gadget/Makefile ++++ b/drivers/usb/gadget/Makefile +@@ -34,6 +34,7 @@ obj-$(CONFIG_USB_MV_UDC) += mv_udc.o + mv_udc-y := mv_udc_core.o + obj-$(CONFIG_USB_FUSB300) += fusb300_udc.o + obj-$(CONFIG_USB_MV_U3D) += mv_u3d_core.o ++obj-$(CONFIG_USB_JZ4740) += jz4740_udc.o + + # + # USB gadget drivers +--- a/drivers/usb/gadget/gadget_chips.h ++++ b/drivers/usb/gadget/gadget_chips.h +@@ -30,6 +30,7 @@ + #define gadget_is_at91(g) (!strcmp("at91_udc", (g)->name)) + #define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name)) + #define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name)) ++#define gadget_is_jz4740(g) (!strcmp("ingenic_hsusb", (g)->name)) + #define gadget_is_net2280(g) (!strcmp("net2280", (g)->name)) + #define gadget_is_pxa(g) (!strcmp("pxa25x_udc", (g)->name)) + #define gadget_is_pxa27x(g) (!strcmp("pxa27x_udc", (g)->name)) +--- /dev/null ++++ b/drivers/usb/gadget/jz4740_udc.c +@@ -0,0 +1,2199 @@ ++/* ++ * linux/drivers/usb/gadget/jz4740_udc.c ++ * ++ * Ingenic JZ4740 on-chip high speed USB device controller ++ * ++ * Copyright (C) 2006 - 2008 Ingenic Semiconductor Inc. ++ * Author: <jlwei@ingenic.cn> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ */ ++ ++/* ++ * This device has ep0, two bulk-in/interrupt-in endpoints, and one bulk-out endpoint. ++ * ++ * - Endpoint numbering is fixed: ep0, ep1in-int, ep2in-bulk, ep1out-bulk. ++ * - DMA works with bulk-in (channel 1) and bulk-out (channel 2) endpoints. ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/delay.h> ++#include <linux/ioport.h> ++#include <linux/slab.h> ++#include <linux/errno.h> ++#include <linux/init.h> ++#include <linux/list.h> ++#include <linux/interrupt.h> ++#include <linux/proc_fs.h> ++#include <linux/usb.h> ++#include <linux/usb/gadget.h> ++#include <linux/clk.h> ++ ++#include <asm/byteorder.h> ++#include <asm/io.h> ++#include <asm/irq.h> ++#include <asm/system.h> ++#include <asm/mach-jz4740/clock.h> ++ ++#include "jz4740_udc.h" ++ ++#define JZ_REG_UDC_FADDR 0x00 /* Function Address 8-bit */ ++#define JZ_REG_UDC_POWER 0x01 /* Power Management 8-bit */ ++#define JZ_REG_UDC_INTRIN 0x02 /* Interrupt IN 16-bit */ ++#define JZ_REG_UDC_INTROUT 0x04 /* Interrupt OUT 16-bit */ ++#define JZ_REG_UDC_INTRINE 0x06 /* Intr IN enable 16-bit */ ++#define JZ_REG_UDC_INTROUTE 0x08 /* Intr OUT enable 16-bit */ ++#define JZ_REG_UDC_INTRUSB 0x0a /* Interrupt USB 8-bit */ ++#define JZ_REG_UDC_INTRUSBE 0x0b /* Interrupt USB Enable 8-bit */ ++#define JZ_REG_UDC_FRAME 0x0c /* Frame number 16-bit */ ++#define JZ_REG_UDC_INDEX 0x0e /* Index register 8-bit */ ++#define JZ_REG_UDC_TESTMODE 0x0f /* USB test mode 8-bit */ ++ ++#define JZ_REG_UDC_CSR0 0x12 /* EP0 CSR 8-bit */ ++#define JZ_REG_UDC_INMAXP 0x10 /* EP1-2 IN Max Pkt Size 16-bit */ ++#define JZ_REG_UDC_INCSR 0x12 /* EP1-2 IN CSR LSB 8/16bit */ ++#define JZ_REG_UDC_INCSRH 0x13 /* EP1-2 IN CSR MSB 8-bit */ ++ ++#define JZ_REG_UDC_OUTMAXP 0x14 /* EP1 OUT Max Pkt Size 16-bit */ ++#define JZ_REG_UDC_OUTCSR 0x16 /* EP1 OUT CSR LSB 8/16bit */ ++#define JZ_REG_UDC_OUTCSRH 0x17 /* EP1 OUT CSR MSB 8-bit */ ++#define JZ_REG_UDC_OUTCOUNT 0x18 /* bytes in EP0/1 OUT FIFO 16-bit */ ++ ++#define JZ_REG_UDC_EP_FIFO(x) (4 * (x) + 0x20) ++ ++#define JZ_REG_UDC_EPINFO 0x78 /* Endpoint information */ ++#define JZ_REG_UDC_RAMINFO 0x79 /* RAM information */ ++ ++#define JZ_REG_UDC_INTR 0x200 /* DMA pending interrupts */ ++#define JZ_REG_UDC_CNTL1 0x204 /* DMA channel 1 control */ ++#define JZ_REG_UDC_ADDR1 0x208 /* DMA channel 1 AHB memory addr */ ++#define JZ_REG_UDC_COUNT1 0x20c /* DMA channel 1 byte count */ ++#define JZ_REG_UDC_CNTL2 0x214 /* DMA channel 2 control */ ++#define JZ_REG_UDC_ADDR2 0x218 /* DMA channel 2 AHB memory addr */ ++#define JZ_REG_UDC_COUNT2 0x21c /* DMA channel 2 byte count */ ++ ++/* Power register bit masks */ ++#define USB_POWER_SUSPENDM 0x01 ++#define USB_POWER_RESUME 0x04 ++#define USB_POWER_HSMODE 0x10 ++#define USB_POWER_HSENAB 0x20 ++#define USB_POWER_SOFTCONN 0x40 ++ ++/* Interrupt register bit masks */ ++#define USB_INTR_SUSPEND 0x01 ++#define USB_INTR_RESUME 0x02 ++#define USB_INTR_RESET 0x04 ++ ++#define USB_INTR_EP0 0x0001 ++#define USB_INTR_INEP1 0x0002 ++#define USB_INTR_INEP2 0x0004 ++#define USB_INTR_OUTEP1 0x0002 ++ ++/* CSR0 bit masks */ ++#define USB_CSR0_OUTPKTRDY 0x01 ++#define USB_CSR0_INPKTRDY 0x02 ++#define USB_CSR0_SENTSTALL 0x04 ++#define USB_CSR0_DATAEND 0x08 ++#define USB_CSR0_SETUPEND 0x10 ++#define USB_CSR0_SENDSTALL 0x20 ++#define USB_CSR0_SVDOUTPKTRDY 0x40 ++#define USB_CSR0_SVDSETUPEND 0x80 ++ ++/* Endpoint CSR register bits */ ++#define USB_INCSRH_AUTOSET 0x80 ++#define USB_INCSRH_ISO 0x40 ++#define USB_INCSRH_MODE 0x20 ++#define USB_INCSRH_DMAREQENAB 0x10 ++#define USB_INCSRH_DMAREQMODE 0x04 ++#define USB_INCSR_CDT 0x40 ++#define USB_INCSR_SENTSTALL 0x20 ++#define USB_INCSR_SENDSTALL 0x10 ++#define USB_INCSR_FF 0x08 ++#define USB_INCSR_UNDERRUN 0x04 ++#define USB_INCSR_FFNOTEMPT 0x02 ++#define USB_INCSR_INPKTRDY 0x01 ++ ++#define USB_OUTCSRH_AUTOCLR 0x80 ++#define USB_OUTCSRH_ISO 0x40 ++#define USB_OUTCSRH_DMAREQENAB 0x20 ++#define USB_OUTCSRH_DNYT 0x10 ++#define USB_OUTCSRH_DMAREQMODE 0x08 ++#define USB_OUTCSR_CDT 0x80 ++#define USB_OUTCSR_SENTSTALL 0x40 ++#define USB_OUTCSR_SENDSTALL 0x20 ++#define USB_OUTCSR_FF 0x10 ++#define USB_OUTCSR_DATAERR 0x08 ++#define USB_OUTCSR_OVERRUN 0x04 ++#define USB_OUTCSR_FFFULL 0x02 ++#define USB_OUTCSR_OUTPKTRDY 0x01 ++ ++/* DMA control bits */ ++#define USB_CNTL_ENA 0x01 ++#define USB_CNTL_DIR_IN 0x02 ++#define USB_CNTL_MODE_1 0x04 ++#define USB_CNTL_INTR_EN 0x08 ++#define USB_CNTL_EP(n) ((n) << 4) ++#define USB_CNTL_BURST_0 (0 << 9) ++#define USB_CNTL_BURST_4 (1 << 9) ++#define USB_CNTL_BURST_8 (2 << 9) ++#define USB_CNTL_BURST_16 (3 << 9) ++ ++ ++#ifndef DEBUG ++# define DEBUG(fmt,args...) do {} while(0) ++#endif ++#ifndef DEBUG_EP0 ++# define NO_STATES ++# define DEBUG_EP0(fmt,args...) do {} while(0) ++#endif ++#ifndef DEBUG_SETUP ++# define DEBUG_SETUP(fmt,args...) do {} while(0) ++#endif ++ ++static struct jz4740_udc jz4740_udc_controller; ++ ++/* ++ * Local declarations. ++ */ ++static int jz4740_udc_start(struct usb_gadget_driver *driver, ++ int (*bind)(struct usb_gadget *)); ++static int jz4740_udc_stop(struct usb_gadget_driver *driver); ++static void jz4740_ep0_kick(struct jz4740_udc *dev, struct jz4740_ep *ep); ++static void jz4740_handle_ep0(struct jz4740_udc *dev, uint32_t intr); ++ ++static void done(struct jz4740_ep *ep, struct jz4740_request *req, ++ int status); ++static void pio_irq_enable(struct jz4740_ep *ep); ++static void pio_irq_disable(struct jz4740_ep *ep); ++static void stop_activity(struct jz4740_udc *dev, ++ struct usb_gadget_driver *driver); ++static void nuke(struct jz4740_ep *ep, int status); ++static void flush(struct jz4740_ep *ep); ++static void udc_set_address(struct jz4740_udc *dev, unsigned char address); ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* inline functions of register read/write/set/clear */ ++ ++static inline uint8_t usb_readb(struct jz4740_udc *udc, size_t reg) ++{ ++ return readb(udc->base + reg); ++} ++ ++static inline uint16_t usb_readw(struct jz4740_udc *udc, size_t reg) ++{ ++ return readw(udc->base + reg); ++} ++ ++static inline uint32_t usb_readl(struct jz4740_udc *udc, size_t reg) ++{ ++ return readl(udc->base + reg); ++} ++ ++static inline void usb_writeb(struct jz4740_udc *udc, size_t reg, uint8_t val) ++{ ++ writeb(val, udc->base + reg); ++} ++ ++static inline void usb_writew(struct jz4740_udc *udc, size_t reg, uint16_t val) ++{ ++ writew(val, udc->base + reg); ++} ++ ++static inline void usb_writel(struct jz4740_udc *udc, size_t reg, uint32_t val) ++{ ++ writel(val, udc->base + reg); ++} ++ ++static inline void usb_setb(struct jz4740_udc *udc, size_t reg, uint8_t mask) ++{ ++ usb_writeb(udc, reg, usb_readb(udc, reg) | mask); ++} ++ ++static inline void usb_setw(struct jz4740_udc *udc, size_t reg, uint16_t mask) ++{ ++ usb_writew(udc, reg, usb_readw(udc, reg) | mask); ++} ++ ++static inline void usb_clearb(struct jz4740_udc *udc, size_t reg, uint8_t mask) ++{ ++ usb_writeb(udc, reg, usb_readb(udc, reg) & ~mask); ++} ++ ++static inline void usb_clearw(struct jz4740_udc *udc, size_t reg, uint16_t mask) ++{ ++ usb_writew(udc, reg, usb_readw(udc, reg) & ~mask); ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++static inline void jz_udc_set_index(struct jz4740_udc *udc, uint8_t index) ++{ ++ usb_writeb(udc, JZ_REG_UDC_INDEX, index); ++} ++ ++static inline void jz_udc_select_ep(struct jz4740_ep *ep) ++{ ++ jz_udc_set_index(ep->dev, ep_index(ep)); ++} ++ ++static inline int write_packet(struct jz4740_ep *ep, ++ struct jz4740_request *req, unsigned int count) ++{ ++ uint8_t *buf; ++ unsigned int length; ++ void __iomem *fifo = ep->dev->base + ep->fifo; ++ ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ buf = req->req.buf + req->req.actual; ++ ++ length = req->req.length - req->req.actual; ++ if (length > count) ++ length = count; ++ req->req.actual += length; ++ ++ DEBUG("Write %d (count %d), fifo %x\n", length, count, ep->fifo); ++ ++ writesl(fifo, buf, length >> 2); ++ writesb(fifo, &buf[length - (length & 3)], length & 3); ++ ++ return length; ++} ++ ++static int read_packet(struct jz4740_ep *ep, ++ struct jz4740_request *req, unsigned int count) ++{ ++ uint8_t *buf; ++ unsigned int length; ++ void __iomem *fifo = ep->dev->base + ep->fifo; ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ buf = req->req.buf + req->req.actual; ++ ++ length = req->req.length - req->req.actual; ++ if (length > count) ++ length = count; ++ req->req.actual += length; ++ ++ DEBUG("Read %d, fifo %x\n", length, ep->fifo); ++ ++ readsl(fifo, buf, length >> 2); ++ readsb(fifo, &buf[length - (length & 3)], length & 3); ++ ++ return length; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* ++ * udc_disable - disable USB device controller ++ */ ++static void udc_disable(struct jz4740_udc *dev) ++{ ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ udc_set_address(dev, 0); ++ ++ /* Disable interrupts */ ++ usb_writew(dev, JZ_REG_UDC_INTRINE, 0); ++ usb_writew(dev, JZ_REG_UDC_INTROUTE, 0); ++ usb_writeb(dev, JZ_REG_UDC_INTRUSBE, 0); ++ ++ /* Disable DMA */ ++ usb_writel(dev, JZ_REG_UDC_CNTL1, 0); ++ usb_writel(dev, JZ_REG_UDC_CNTL2, 0); ++ ++ /* Disconnect from usb */ ++ usb_clearb(dev, JZ_REG_UDC_POWER, USB_POWER_SOFTCONN); ++ ++ /* Disable the USB PHY */ ++ clk_disable(dev->clk); ++ ++ dev->ep0state = WAIT_FOR_SETUP; ++ dev->gadget.speed = USB_SPEED_UNKNOWN; ++ ++ return; ++} ++ ++/* ++ * udc_reinit - initialize software state ++ */ ++static void udc_reinit(struct jz4740_udc *dev) ++{ ++ int i; ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ /* device/ep0 records init */ ++ INIT_LIST_HEAD(&dev->gadget.ep_list); ++ INIT_LIST_HEAD(&dev->gadget.ep0->ep_list); ++ dev->ep0state = WAIT_FOR_SETUP; ++ ++ for (i = 0; i < UDC_MAX_ENDPOINTS; i++) { ++ struct jz4740_ep *ep = &dev->ep[i]; ++ ++ if (i != 0) ++ list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list); ++ ++ INIT_LIST_HEAD(&ep->queue); ++ ep->desc = 0; ++ ep->stopped = 0; ++ } ++} ++ ++/* until it's enabled, this UDC should be completely invisible ++ * to any USB host. ++ */ ++static void udc_enable(struct jz4740_udc *dev) ++{ ++ int i; ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ /* UDC state is incorrect - Added by River */ ++ if (dev->state != UDC_STATE_ENABLE) { ++ return; ++ } ++ ++ dev->gadget.speed = USB_SPEED_UNKNOWN; ++ ++ /* Flush FIFO for each */ ++ for (i = 0; i < UDC_MAX_ENDPOINTS; i++) { ++ struct jz4740_ep *ep = &dev->ep[i]; ++ ++ jz_udc_select_ep(ep); ++ flush(ep); ++ } ++ ++ /* Set this bit to allow the UDC entering low-power mode when ++ * there are no actions on the USB bus. ++ * UDC still works during this bit was set. ++ */ ++ jz4740_clock_udc_enable_auto_suspend(); ++ ++ /* Enable the USB PHY */ ++ clk_enable(dev->clk); ++ ++ /* Disable interrupts */ ++/* usb_writew(dev, JZ_REG_UDC_INTRINE, 0); ++ usb_writew(dev, JZ_REG_UDC_INTROUTE, 0); ++ usb_writeb(dev, JZ_REG_UDC_INTRUSBE, 0);*/ ++ ++ /* Enable interrupts */ ++ usb_setw(dev, JZ_REG_UDC_INTRINE, USB_INTR_EP0); ++ usb_setb(dev, JZ_REG_UDC_INTRUSBE, USB_INTR_RESET); ++ /* Don't enable rest of the interrupts */ ++ /* usb_setw(dev, JZ_REG_UDC_INTRINE, USB_INTR_INEP1 | USB_INTR_INEP2); ++ usb_setw(dev, JZ_REG_UDC_INTROUTE, USB_INTR_OUTEP1); */ ++ ++ /* Enable SUSPEND */ ++ /* usb_setb(dev, JZ_REG_UDC_POWER, USB_POWER_SUSPENDM); */ ++ ++ /* Enable HS Mode */ ++ usb_setb(dev, JZ_REG_UDC_POWER, USB_POWER_HSENAB); ++ ++ /* Let host detect UDC: ++ * Software must write a 1 to the PMR:USB_POWER_SOFTCONN bit to turn this ++ * transistor on and pull the USBDP pin HIGH. ++ */ ++ usb_setb(dev, JZ_REG_UDC_POWER, USB_POWER_SOFTCONN); ++ ++ return; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* keeping it simple: ++ * - one bus driver, initted first; ++ * - one function driver, initted second ++ */ ++ ++/* ++ * Register entry point for the peripheral controller driver. ++ */ ++ ++static int jz4740_udc_start(struct usb_gadget_driver *driver, ++ int (*bind)(struct usb_gadget *)) ++{ ++ struct jz4740_udc *dev = &jz4740_udc_controller; ++ int retval; ++ ++ if (!driver || !bind) ++ return -EINVAL; ++ ++ if (!dev) ++ return -ENODEV; ++ ++ if (dev->driver) ++ return -EBUSY; ++ ++ /* hook up the driver */ ++ dev->driver = driver; ++ dev->gadget.dev.driver = &driver->driver; ++ ++ retval = bind(&dev->gadget); ++ if (retval) { ++ DEBUG("%s: bind to driver %s --> error %d\n", dev->gadget.name, ++ driver->driver.name, retval); ++ dev->driver = 0; ++ return retval; ++ } ++ ++ /* then enable host detection and ep0; and we're ready ++ * for set_configuration as well as eventual disconnect. ++ */ ++ udc_enable(dev); ++ ++ DEBUG("%s: registered gadget driver '%s'\n", dev->gadget.name, ++ driver->driver.name); ++ ++ return 0; ++} ++ ++static void stop_activity(struct jz4740_udc *dev, ++ struct usb_gadget_driver *driver) ++{ ++ int i; ++ ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ /* don't disconnect drivers more than once */ ++ if (dev->gadget.speed == USB_SPEED_UNKNOWN) ++ driver = 0; ++ dev->gadget.speed = USB_SPEED_UNKNOWN; ++ ++ /* prevent new request submissions, kill any outstanding requests */ ++ for (i = 0; i < UDC_MAX_ENDPOINTS; i++) { ++ struct jz4740_ep *ep = &dev->ep[i]; ++ ++ ep->stopped = 1; ++ ++ jz_udc_select_ep(ep); ++ nuke(ep, -ESHUTDOWN); ++ } ++ ++ /* report disconnect; the driver is already quiesced */ ++ if (driver) { ++ spin_unlock(&dev->lock); ++ driver->disconnect(&dev->gadget); ++ spin_lock(&dev->lock); ++ } ++ ++ /* re-init driver-visible data structures */ ++ udc_reinit(dev); ++} ++ ++ ++/* ++ * Unregister entry point for the peripheral controller driver. ++ */ ++static int jz4740_udc_stop(struct usb_gadget_driver *driver) ++{ ++ struct jz4740_udc *dev = &jz4740_udc_controller; ++ unsigned long flags; ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ if (!dev) ++ return -ENODEV; ++ if (!driver || driver != dev->driver) ++ return -EINVAL; ++ if (!driver->unbind) ++ return -EBUSY; ++ ++ spin_lock_irqsave(&dev->lock, flags); ++ dev->driver = 0; ++ stop_activity(dev, driver); ++ spin_unlock_irqrestore(&dev->lock, flags); ++ ++ driver->unbind(&dev->gadget); ++ ++ udc_disable(dev); ++ ++ DEBUG("unregistered driver '%s'\n", driver->driver.name); ++ ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/** Write request to FIFO (max write == maxp size) ++ * Return: 0 = still running, 1 = completed, negative = errno ++ * NOTE: INDEX register must be set for EP ++ */ ++static int write_fifo(struct jz4740_ep *ep, struct jz4740_request *req) ++{ ++ struct jz4740_udc *dev = ep->dev; ++ uint32_t max, csr; ++ ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ max = le16_to_cpu(ep->desc->wMaxPacketSize); ++ ++ csr = usb_readb(dev, ep->csr); ++ ++ if (!(csr & USB_INCSR_FFNOTEMPT)) { ++ unsigned count; ++ int is_last, is_short; ++ ++ count = write_packet(ep, req, max); ++ usb_setb(dev, ep->csr, USB_INCSR_INPKTRDY); ++ ++ /* last packet is usually short (or a zlp) */ ++ if (unlikely(count != max)) ++ is_last = is_short = 1; ++ else { ++ if (likely(req->req.length != req->req.actual) ++ || req->req.zero) ++ is_last = 0; ++ else ++ is_last = 1; ++ /* interrupt/iso maxpacket may not fill the fifo */ ++ is_short = unlikely(max < ep_maxpacket(ep)); ++ } ++ ++ DEBUG("%s: wrote %s %d bytes%s%s %d left %p\n", __FUNCTION__, ++ ep->ep.name, count, ++ is_last ? "/L" : "", is_short ? "/S" : "", ++ req->req.length - req->req.actual, req); ++ ++ /* requests complete when all IN data is in the FIFO */ ++ if (is_last) { ++ done(ep, req, 0); ++ if (list_empty(&ep->queue)) { ++ pio_irq_disable(ep); ++ } ++ return 1; ++ } ++ } else { ++ DEBUG("Hmm.. %d ep FIFO is not empty!\n", ep_index(ep)); ++ } ++ ++ return 0; ++} ++ ++/** Read to request from FIFO (max read == bytes in fifo) ++ * Return: 0 = still running, 1 = completed, negative = errno ++ * NOTE: INDEX register must be set for EP ++ */ ++static int read_fifo(struct jz4740_ep *ep, struct jz4740_request *req) ++{ ++ struct jz4740_udc *dev = ep->dev; ++ uint32_t csr; ++ unsigned count, is_short; ++ ++ /* make sure there's a packet in the FIFO. */ ++ csr = usb_readb(dev, ep->csr); ++ if (!(csr & USB_OUTCSR_OUTPKTRDY)) { ++ DEBUG("%s: Packet NOT ready!\n", __FUNCTION__); ++ return -EINVAL; ++ } ++ ++ /* read all bytes from this packet */ ++ count = usb_readw(dev, JZ_REG_UDC_OUTCOUNT); ++ ++ is_short = (count < ep->ep.maxpacket); ++ ++ count = read_packet(ep, req, count); ++ ++ DEBUG("read %s %02x, %d bytes%s req %p %d/%d\n", ++ ep->ep.name, csr, count, ++ is_short ? "/S" : "", req, req->req.actual, req->req.length); ++ ++ /* Clear OutPktRdy */ ++ usb_clearb(dev, ep->csr, USB_OUTCSR_OUTPKTRDY); ++ ++ /* completion */ ++ if (is_short || req->req.actual == req->req.length) { ++ done(ep, req, 0); ++ ++ if (list_empty(&ep->queue)) ++ pio_irq_disable(ep); ++ return 1; ++ } ++ ++ /* finished that packet. the next one may be waiting... */ ++ return 0; ++} ++ ++/* ++ * done - retire a request; caller blocked irqs ++ * INDEX register is preserved to keep same ++ */ ++static void done(struct jz4740_ep *ep, struct jz4740_request *req, int status) ++{ ++ unsigned int stopped = ep->stopped; ++ uint32_t index; ++ ++ DEBUG("%s, %p\n", __FUNCTION__, ep); ++ list_del_init(&req->queue); ++ ++ if (likely(req->req.status == -EINPROGRESS)) ++ req->req.status = status; ++ else ++ status = req->req.status; ++ ++ if (status && status != -ESHUTDOWN) ++ DEBUG("complete %s req %p stat %d len %u/%u\n", ++ ep->ep.name, &req->req, status, ++ req->req.actual, req->req.length); ++ ++ /* don't modify queue heads during completion callback */ ++ ep->stopped = 1; ++ /* Read current index (completion may modify it) */ ++ index = usb_readb(ep->dev, JZ_REG_UDC_INDEX); ++ spin_unlock_irqrestore(&ep->dev->lock, ep->dev->lock_flags); ++ ++ req->req.complete(&ep->ep, &req->req); ++ ++ spin_lock_irqsave(&ep->dev->lock, ep->dev->lock_flags); ++ /* Restore index */ ++ jz_udc_set_index(ep->dev, index); ++ ep->stopped = stopped; ++} ++ ++static inline unsigned int jz4740_udc_ep_irq_enable_reg(struct jz4740_ep *ep) ++{ ++ if (ep_is_in(ep)) ++ return JZ_REG_UDC_INTRINE; ++ else ++ return JZ_REG_UDC_INTROUTE; ++} ++ ++/** Enable EP interrupt */ ++static void pio_irq_enable(struct jz4740_ep *ep) ++{ ++ DEBUG("%s: EP%d %s\n", __FUNCTION__, ep_index(ep), ep_is_in(ep) ? "IN": "OUT"); ++ ++ usb_setw(ep->dev, jz4740_udc_ep_irq_enable_reg(ep), BIT(ep_index(ep))); ++} ++ ++/** Disable EP interrupt */ ++static void pio_irq_disable(struct jz4740_ep *ep) ++{ ++ DEBUG("%s: EP%d %s\n", __FUNCTION__, ep_index(ep), ep_is_in(ep) ? "IN": "OUT"); ++ ++ usb_clearw(ep->dev, jz4740_udc_ep_irq_enable_reg(ep), BIT(ep_index(ep))); ++} ++ ++/* ++ * nuke - dequeue ALL requests ++ */ ++static void nuke(struct jz4740_ep *ep, int status) ++{ ++ struct jz4740_request *req; ++ ++ DEBUG("%s, %p\n", __FUNCTION__, ep); ++ ++ /* Flush FIFO */ ++ flush(ep); ++ ++ /* called with irqs blocked */ ++ while (!list_empty(&ep->queue)) { ++ req = list_entry(ep->queue.next, struct jz4740_request, queue); ++ done(ep, req, status); ++ } ++ ++ /* Disable IRQ if EP is enabled (has descriptor) */ ++ if (ep->desc) ++ pio_irq_disable(ep); ++} ++ ++/** Flush EP FIFO ++ * NOTE: INDEX register must be set before this call ++ */ ++static void flush(struct jz4740_ep *ep) ++{ ++ DEBUG("%s: %s\n", __FUNCTION__, ep->ep.name); ++ ++ switch (ep->type) { ++ case ep_bulk_in: ++ case ep_interrupt: ++ usb_setb(ep->dev, ep->csr, USB_INCSR_FF); ++ break; ++ case ep_bulk_out: ++ usb_setb(ep->dev, ep->csr, USB_OUTCSR_FF); ++ break; ++ case ep_control: ++ break; ++ } ++} ++ ++/** ++ * jz4740_in_epn - handle IN interrupt ++ */ ++static void jz4740_in_epn(struct jz4740_udc *dev, uint32_t ep_idx, uint32_t intr) ++{ ++ uint32_t csr; ++ struct jz4740_ep *ep = &dev->ep[ep_idx + 1]; ++ struct jz4740_request *req; ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ jz_udc_select_ep(ep); ++ ++ csr = usb_readb(dev, ep->csr); ++ DEBUG("%s: %d, csr %x\n", __FUNCTION__, ep_idx, csr); ++ ++ if (csr & USB_INCSR_SENTSTALL) { ++ DEBUG("USB_INCSR_SENTSTALL\n"); ++ usb_clearb(dev, ep->csr, USB_INCSR_SENTSTALL); ++ return; ++ } ++ ++ if (!ep->desc) { ++ DEBUG("%s: NO EP DESC\n", __FUNCTION__); ++ return; ++ } ++ ++ if (!list_empty(&ep->queue)) { ++ req = list_first_entry(&ep->queue, struct jz4740_request, queue); ++ write_fifo(ep, req); ++ } ++} ++ ++/* ++ * Bulk OUT (recv) ++ */ ++static void jz4740_out_epn(struct jz4740_udc *dev, uint32_t ep_idx, uint32_t intr) ++{ ++ struct jz4740_ep *ep = &dev->ep[ep_idx]; ++ struct jz4740_request *req; ++ ++ DEBUG("%s: %d\n", __FUNCTION__, ep_idx); ++ ++ jz_udc_select_ep(ep); ++ if (ep->desc) { ++ uint32_t csr; ++ ++ while ((csr = usb_readb(dev, ep->csr)) & ++ (USB_OUTCSR_OUTPKTRDY | USB_OUTCSR_SENTSTALL)) { ++ DEBUG("%s: %x\n", __FUNCTION__, csr); ++ ++ if (csr & USB_OUTCSR_SENTSTALL) { ++ DEBUG("%s: stall sent, flush fifo\n", ++ __FUNCTION__); ++ /* usb_set(USB_OUT_CSR1_FIFO_FLUSH, ep->csr1); */ ++ flush(ep); ++ } else if (csr & USB_OUTCSR_OUTPKTRDY) { ++ if (list_empty(&ep->queue)) ++ req = 0; ++ else ++ req = ++ list_entry(ep->queue.next, ++ struct jz4740_request, ++ queue); ++ ++ if (!req) { ++ DEBUG("%s: NULL REQ %d\n", ++ __FUNCTION__, ep_idx); ++ break; ++ } else { ++ read_fifo(ep, req); ++ } ++ } ++ } ++ } else { ++ /* Throw packet away.. */ ++ DEBUG("%s: ep %p ep_indx %d No descriptor?!?\n", __FUNCTION__, ep, ep_idx); ++ flush(ep); ++ } ++} ++ ++/** Halt specific EP ++ * Return 0 if success ++ * NOTE: Sets INDEX register to EP ! ++ */ ++static int jz4740_set_halt(struct usb_ep *_ep, int value) ++{ ++ struct jz4740_udc *dev; ++ struct jz4740_ep *ep; ++ unsigned long flags; ++ ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ ep = container_of(_ep, struct jz4740_ep, ep); ++ if (unlikely(!_ep || (!ep->desc && ep->type != ep_control))) { ++ DEBUG("%s, bad ep\n", __FUNCTION__); ++ return -EINVAL; ++ } ++ ++ dev = ep->dev; ++ ++ spin_lock_irqsave(&dev->lock, flags); ++ ++ jz_udc_select_ep(ep); ++ ++ DEBUG("%s, ep %d, val %d\n", __FUNCTION__, ep_index(ep), value); ++ ++ if (ep_index(ep) == 0) { ++ /* EP0 */ ++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SENDSTALL); ++ } else if (ep_is_in(ep)) { ++ uint32_t csr = usb_readb(dev, ep->csr); ++ if (value && ((csr & USB_INCSR_FFNOTEMPT) ++ || !list_empty(&ep->queue))) { ++ /* ++ * Attempts to halt IN endpoints will fail (returning -EAGAIN) ++ * if any transfer requests are still queued, or if the controller ++ * FIFO still holds bytes that the host hasnÂ’t collected. ++ */ ++ spin_unlock_irqrestore(&dev->lock, flags); ++ DEBUG ++ ("Attempt to halt IN endpoint failed (returning -EAGAIN) %d %d\n", ++ (csr & USB_INCSR_FFNOTEMPT), ++ !list_empty(&ep->queue)); ++ return -EAGAIN; ++ } ++ flush(ep); ++ if (value) { ++ usb_setb(dev, ep->csr, USB_INCSR_SENDSTALL); ++ } else { ++ usb_clearb(dev, ep->csr, USB_INCSR_SENDSTALL); ++ usb_setb(dev, ep->csr, USB_INCSR_CDT); ++ } ++ } else { ++ ++ flush(ep); ++ if (value) { ++ usb_setb(dev, ep->csr, USB_OUTCSR_SENDSTALL); ++ } else { ++ usb_clearb(dev, ep->csr, USB_OUTCSR_SENDSTALL); ++ usb_setb(dev, ep->csr, USB_OUTCSR_CDT); ++ } ++ } ++ ++ ep->stopped = value; ++ ++ spin_unlock_irqrestore(&dev->lock, flags); ++ ++ DEBUG("%s %s halted\n", _ep->name, value == 0 ? "NOT" : "IS"); ++ ++ return 0; ++} ++ ++ ++static int jz4740_ep_enable(struct usb_ep *_ep, ++ const struct usb_endpoint_descriptor *desc) ++{ ++ struct jz4740_ep *ep; ++ struct jz4740_udc *dev; ++ unsigned long flags; ++ uint32_t max, csrh = 0; ++ ++ DEBUG("%s: trying to enable %s\n", __FUNCTION__, _ep->name); ++ ++ if (!_ep || !desc) ++ return -EINVAL; ++ ++ ep = container_of(_ep, struct jz4740_ep, ep); ++ if (ep->desc || ep->type == ep_control ++ || desc->bDescriptorType != USB_DT_ENDPOINT ++ || ep->bEndpointAddress != desc->bEndpointAddress) { ++ DEBUG("%s, bad ep or descriptor\n", __FUNCTION__); ++ return -EINVAL; ++ } ++ ++ /* xfer types must match, except that interrupt ~= bulk */ ++ if (ep->bmAttributes != desc->bmAttributes ++ && ep->bmAttributes != USB_ENDPOINT_XFER_BULK ++ && desc->bmAttributes != USB_ENDPOINT_XFER_INT) { ++ DEBUG("%s, %s type mismatch\n", __FUNCTION__, _ep->name); ++ return -EINVAL; ++ } ++ ++ dev = ep->dev; ++ if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) { ++ DEBUG("%s, bogus device state\n", __FUNCTION__); ++ return -ESHUTDOWN; ++ } ++ ++ max = le16_to_cpu(desc->wMaxPacketSize); ++ ++ spin_lock_irqsave(&ep->dev->lock, flags); ++ ++ /* Configure the endpoint */ ++ jz_udc_select_ep(ep); ++ if (ep_is_in(ep)) { ++ usb_writew(dev, JZ_REG_UDC_INMAXP, max); ++ switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { ++ case USB_ENDPOINT_XFER_BULK: ++ case USB_ENDPOINT_XFER_INT: ++ csrh &= ~USB_INCSRH_ISO; ++ break; ++ case USB_ENDPOINT_XFER_ISOC: ++ csrh |= USB_INCSRH_ISO; ++ break; ++ } ++ usb_writeb(dev, JZ_REG_UDC_INCSRH, csrh); ++ } ++ else { ++ usb_writew(dev, JZ_REG_UDC_OUTMAXP, max); ++ switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { ++ case USB_ENDPOINT_XFER_BULK: ++ csrh &= ~USB_OUTCSRH_ISO; ++ break; ++ case USB_ENDPOINT_XFER_INT: ++ csrh &= ~USB_OUTCSRH_ISO; ++ csrh |= USB_OUTCSRH_DNYT; ++ break; ++ case USB_ENDPOINT_XFER_ISOC: ++ csrh |= USB_OUTCSRH_ISO; ++ break; ++ } ++ usb_writeb(dev, JZ_REG_UDC_OUTCSRH, csrh); ++ } ++ ++ ++ ep->stopped = 0; ++ ep->desc = desc; ++ ep->ep.maxpacket = max; ++ ++ spin_unlock_irqrestore(&ep->dev->lock, flags); ++ ++ /* Reset halt state (does flush) */ ++ jz4740_set_halt(_ep, 0); ++ ++ DEBUG("%s: enabled %s\n", __FUNCTION__, _ep->name); ++ ++ return 0; ++} ++ ++/** Disable EP ++ * NOTE: Sets INDEX register ++ */ ++static int jz4740_ep_disable(struct usb_ep *_ep) ++{ ++ struct jz4740_ep *ep; ++ unsigned long flags; ++ ++ DEBUG("%s, %p\n", __FUNCTION__, _ep); ++ ++ ep = container_of(_ep, struct jz4740_ep, ep); ++ if (!_ep || !ep->desc) { ++ DEBUG("%s, %s not enabled\n", __FUNCTION__, ++ _ep ? ep->ep.name : NULL); ++ return -EINVAL; ++ } ++ ++ spin_lock_irqsave(&ep->dev->lock, flags); ++ ++ jz_udc_select_ep(ep); ++ ++ /* Nuke all pending requests (does flush) */ ++ nuke(ep, -ESHUTDOWN); ++ ++ /* Disable ep IRQ */ ++ pio_irq_disable(ep); ++ ++ ep->desc = 0; ++ ep->stopped = 1; ++ ++ spin_unlock_irqrestore(&ep->dev->lock, flags); ++ ++ DEBUG("%s: disabled %s\n", __FUNCTION__, _ep->name); ++ return 0; ++} ++ ++static struct usb_request *jz4740_alloc_request(struct usb_ep *ep, gfp_t gfp_flags) ++{ ++ struct jz4740_request *req; ++ ++ req = kzalloc(sizeof(*req), gfp_flags); ++ if (!req) ++ return NULL; ++ ++ INIT_LIST_HEAD(&req->queue); ++ ++ return &req->req; ++} ++ ++static void jz4740_free_request(struct usb_ep *ep, struct usb_request *_req) ++{ ++ struct jz4740_request *req; ++ ++ req = container_of(_req, struct jz4740_request, req); ++ WARN_ON(!list_empty(&req->queue)); ++ ++ kfree(req); ++} ++ ++/*--------------------------------------------------------------------*/ ++ ++/** Queue one request ++ * Kickstart transfer if needed ++ * NOTE: Sets INDEX register ++ */ ++static int jz4740_queue(struct usb_ep *_ep, struct usb_request *_req, ++ gfp_t gfp_flags) ++{ ++ struct jz4740_request *req; ++ struct jz4740_ep *ep; ++ struct jz4740_udc *dev; ++ ++ DEBUG("%s, %p\n", __FUNCTION__, _ep); ++ ++ req = container_of(_req, struct jz4740_request, req); ++ if (unlikely ++ (!_req || !_req->complete || !_req->buf ++ || !list_empty(&req->queue))) { ++ DEBUG("%s, bad params\n", __FUNCTION__); ++ return -EINVAL; ++ } ++ ++ ep = container_of(_ep, struct jz4740_ep, ep); ++ if (unlikely(!_ep || (!ep->desc && ep->type != ep_control))) { ++ DEBUG("%s, bad ep\n", __FUNCTION__); ++ return -EINVAL; ++ } ++ ++ dev = ep->dev; ++ if (unlikely(!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)) { ++ DEBUG("%s, bogus device state %p\n", __FUNCTION__, dev->driver); ++ return -ESHUTDOWN; ++ } ++ ++ DEBUG("%s queue req %p, len %d buf %p\n", _ep->name, _req, _req->length, ++ _req->buf); ++ ++ spin_lock_irqsave(&dev->lock, dev->lock_flags); ++ ++ _req->status = -EINPROGRESS; ++ _req->actual = 0; ++ ++ /* kickstart this i/o queue? */ ++ DEBUG("Add to %d Q %d %d\n", ep_index(ep), list_empty(&ep->queue), ++ ep->stopped); ++ if (list_empty(&ep->queue) && likely(!ep->stopped)) { ++ uint32_t csr; ++ ++ if (unlikely(ep_index(ep) == 0)) { ++ /* EP0 */ ++ list_add_tail(&req->queue, &ep->queue); ++ jz4740_ep0_kick(dev, ep); ++ req = 0; ++ } ++ else if (ep_is_in(ep)) { ++ /* EP1 & EP2 */ ++ jz_udc_select_ep(ep); ++ csr = usb_readb(dev, ep->csr); ++ pio_irq_enable(ep); ++ if (!(csr & USB_INCSR_FFNOTEMPT)) { ++ if (write_fifo(ep, req) == 1) ++ req = 0; ++ } ++ } else { ++ /* EP1 */ ++ jz_udc_select_ep(ep); ++ csr = usb_readb(dev, ep->csr); ++ pio_irq_enable(ep); ++ if (csr & USB_OUTCSR_OUTPKTRDY) { ++ if (read_fifo(ep, req) == 1) ++ req = 0; ++ } ++ } ++ } ++ ++ /* pio or dma irq handler advances the queue. */ ++ if (likely(req != 0)) ++ list_add_tail(&req->queue, &ep->queue); ++ ++ spin_unlock_irqrestore(&dev->lock, dev->lock_flags); ++ ++ return 0; ++} ++ ++/* dequeue JUST ONE request */ ++static int jz4740_dequeue(struct usb_ep *_ep, struct usb_request *_req) ++{ ++ struct jz4740_ep *ep; ++ struct jz4740_request *req; ++ unsigned long flags; ++ ++ DEBUG("%s, %p\n", __FUNCTION__, _ep); ++ ++ ep = container_of(_ep, struct jz4740_ep, ep); ++ if (!_ep || ep->type == ep_control) ++ return -EINVAL; ++ ++ spin_lock_irqsave(&ep->dev->lock, flags); ++ ++ /* make sure it's actually queued on this endpoint */ ++ list_for_each_entry(req, &ep->queue, queue) { ++ if (&req->req == _req) ++ break; ++ } ++ if (&req->req != _req) { ++ spin_unlock_irqrestore(&ep->dev->lock, flags); ++ return -EINVAL; ++ } ++ done(ep, req, -ECONNRESET); ++ ++ spin_unlock_irqrestore(&ep->dev->lock, flags); ++ return 0; ++} ++ ++/** Return bytes in EP FIFO ++ * NOTE: Sets INDEX register to EP ++ */ ++static int jz4740_fifo_status(struct usb_ep *_ep) ++{ ++ uint32_t csr; ++ int count = 0; ++ struct jz4740_ep *ep; ++ unsigned long flags; ++ ++ ep = container_of(_ep, struct jz4740_ep, ep); ++ if (!_ep) { ++ DEBUG("%s, bad ep\n", __FUNCTION__); ++ return -ENODEV; ++ } ++ ++ DEBUG("%s, %d\n", __FUNCTION__, ep_index(ep)); ++ ++ /* LPD can't report unclaimed bytes from IN fifos */ ++ if (ep_is_in(ep)) ++ return -EOPNOTSUPP; ++ ++ spin_lock_irqsave(&ep->dev->lock, flags); ++ jz_udc_select_ep(ep); ++ ++ csr = usb_readb(ep->dev, ep->csr); ++ if (ep->dev->gadget.speed != USB_SPEED_UNKNOWN || ++ csr & 0x1) { ++ count = usb_readw(ep->dev, JZ_REG_UDC_OUTCOUNT); ++ } ++ ++ spin_unlock_irqrestore(&ep->dev->lock, flags); ++ ++ return count; ++} ++ ++/** Flush EP FIFO ++ * NOTE: Sets INDEX register to EP ++ */ ++static void jz4740_fifo_flush(struct usb_ep *_ep) ++{ ++ struct jz4740_ep *ep; ++ unsigned long flags; ++ ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ ep = container_of(_ep, struct jz4740_ep, ep); ++ if (unlikely(!_ep || (!ep->desc && ep->type == ep_control))) { ++ DEBUG("%s, bad ep\n", __FUNCTION__); ++ return; ++ } ++ ++ spin_lock_irqsave(&ep->dev->lock, flags); ++ ++ jz_udc_select_ep(ep); ++ flush(ep); ++ ++ spin_unlock_irqrestore(&ep->dev->lock, flags); ++} ++ ++/****************************************************************/ ++/* End Point 0 related functions */ ++/****************************************************************/ ++ ++/* return: 0 = still running, 1 = completed, negative = errno */ ++static int write_fifo_ep0(struct jz4740_ep *ep, struct jz4740_request *req) ++{ ++ uint32_t max; ++ unsigned count; ++ int is_last; ++ ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ max = ep_maxpacket(ep); ++ ++ count = write_packet(ep, req, max); ++ ++ /* last packet is usually short (or a zlp) */ ++ if (unlikely(count != max)) ++ is_last = 1; ++ else { ++ if (likely(req->req.length != req->req.actual) || req->req.zero) ++ is_last = 0; ++ else ++ is_last = 1; ++ } ++ ++ DEBUG_EP0("%s: wrote %s %d bytes%s %d left %p\n", __FUNCTION__, ++ ep->ep.name, count, ++ is_last ? "/L" : "", req->req.length - req->req.actual, req); ++ ++ /* requests complete when all IN data is in the FIFO */ ++ if (is_last) { ++ done(ep, req, 0); ++ return 1; ++ } ++ ++ return 0; ++} ++ ++static inline int jz4740_fifo_read(struct jz4740_ep *ep, ++ unsigned char *cp, int max) ++{ ++ int bytes; ++ int count = usb_readw(ep->dev, JZ_REG_UDC_OUTCOUNT); ++ ++ if (count > max) ++ count = max; ++ bytes = count; ++ while (count--) ++ *cp++ = usb_readb(ep->dev, ep->fifo); ++ ++ return bytes; ++} ++ ++static inline void jz4740_fifo_write(struct jz4740_ep *ep, ++ unsigned char *cp, int count) ++{ ++ DEBUG("fifo_write: %d %d\n", ep_index(ep), count); ++ while (count--) ++ usb_writeb(ep->dev, ep->fifo, *cp++); ++} ++ ++static int read_fifo_ep0(struct jz4740_ep *ep, struct jz4740_request *req) ++{ ++ struct jz4740_udc *dev = ep->dev; ++ uint32_t csr; ++ uint8_t *buf; ++ unsigned bufferspace, count, is_short; ++ ++ DEBUG_EP0("%s\n", __FUNCTION__); ++ ++ csr = usb_readb(dev, JZ_REG_UDC_CSR0); ++ if (!(csr & USB_CSR0_OUTPKTRDY)) ++ return 0; ++ ++ buf = req->req.buf + req->req.actual; ++ prefetchw(buf); ++ bufferspace = req->req.length - req->req.actual; ++ ++ /* read all bytes from this packet */ ++ if (likely(csr & USB_CSR0_OUTPKTRDY)) { ++ count = usb_readw(dev, JZ_REG_UDC_OUTCOUNT); ++ req->req.actual += min(count, bufferspace); ++ } else /* zlp */ ++ count = 0; ++ ++ is_short = (count < ep->ep.maxpacket); ++ DEBUG_EP0("read %s %02x, %d bytes%s req %p %d/%d\n", ++ ep->ep.name, csr, count, ++ is_short ? "/S" : "", req, req->req.actual, req->req.length); ++ ++ while (likely(count-- != 0)) { ++ uint8_t byte = (uint8_t)usb_readl(dev, ep->fifo); ++ ++ if (unlikely(bufferspace == 0)) { ++ /* this happens when the driver's buffer ++ * is smaller than what the host sent. ++ * discard the extra data. ++ */ ++ if (req->req.status != -EOVERFLOW) ++ DEBUG_EP0("%s overflow %d\n", ep->ep.name, ++ count); ++ req->req.status = -EOVERFLOW; ++ } else { ++ *buf++ = byte; ++ bufferspace--; ++ } ++ } ++ ++ /* completion */ ++ if (is_short || req->req.actual == req->req.length) { ++ done(ep, req, 0); ++ return 1; ++ } ++ ++ /* finished that packet. the next one may be waiting... */ ++ return 0; ++} ++ ++/** ++ * udc_set_address - set the USB address for this device ++ * @address: ++ * ++ * Called from control endpoint function after it decodes a set address setup packet. ++ */ ++static void udc_set_address(struct jz4740_udc *dev, unsigned char address) ++{ ++ DEBUG_EP0("%s: %d\n", __FUNCTION__, address); ++ ++ usb_writeb(dev, JZ_REG_UDC_FADDR, address); ++} ++ ++/* ++ * DATA_STATE_RECV (USB_CSR0_OUTPKTRDY) ++ * - if error ++ * set USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND | USB_CSR0_SENDSTALL bits ++ * - else ++ * set USB_CSR0_SVDOUTPKTRDY bit ++ if last set USB_CSR0_DATAEND bit ++ */ ++static void jz4740_ep0_out(struct jz4740_udc *dev, uint32_t csr, int kickstart) ++{ ++ struct jz4740_request *req; ++ struct jz4740_ep *ep = &dev->ep[0]; ++ int ret; ++ ++ DEBUG_EP0("%s: %x\n", __FUNCTION__, csr); ++ ++ if (list_empty(&ep->queue)) ++ req = 0; ++ else ++ req = list_entry(ep->queue.next, struct jz4740_request, queue); ++ ++ if (req) { ++ if (req->req.length == 0) { ++ DEBUG_EP0("ZERO LENGTH OUT!\n"); ++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND)); ++ dev->ep0state = WAIT_FOR_SETUP; ++ return; ++ } else if (kickstart) { ++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY)); ++ return; ++ } ++ ret = read_fifo_ep0(ep, req); ++ if (ret) { ++ /* Done! */ ++ DEBUG_EP0("%s: finished, waiting for status\n", ++ __FUNCTION__); ++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND)); ++ dev->ep0state = WAIT_FOR_SETUP; ++ } else { ++ /* Not done yet.. */ ++ DEBUG_EP0("%s: not finished\n", __FUNCTION__); ++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SVDOUTPKTRDY); ++ } ++ } else { ++ DEBUG_EP0("NO REQ??!\n"); ++ } ++} ++ ++/* ++ * DATA_STATE_XMIT ++ */ ++static int jz4740_ep0_in(struct jz4740_udc *dev, uint32_t csr) ++{ ++ struct jz4740_request *req; ++ struct jz4740_ep *ep = &dev->ep[0]; ++ int ret, need_zlp = 0; ++ ++ DEBUG_EP0("%s: %x\n", __FUNCTION__, csr); ++ ++ if (list_empty(&ep->queue)) ++ req = 0; ++ else ++ req = list_entry(ep->queue.next, struct jz4740_request, queue); ++ ++ if (!req) { ++ DEBUG_EP0("%s: NULL REQ\n", __FUNCTION__); ++ return 0; ++ } ++ ++ if (req->req.length == 0) { ++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_INPKTRDY | USB_CSR0_DATAEND)); ++ dev->ep0state = WAIT_FOR_SETUP; ++ return 1; ++ } ++ ++ if (req->req.length - req->req.actual == EP0_MAXPACKETSIZE) { ++ /* Next write will end with the packet size, */ ++ /* so we need zero-length-packet */ ++ need_zlp = 1; ++ } ++ ++ ret = write_fifo_ep0(ep, req); ++ ++ if (ret == 1 && !need_zlp) { ++ /* Last packet */ ++ DEBUG_EP0("%s: finished, waiting for status\n", __FUNCTION__); ++ ++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_INPKTRDY | USB_CSR0_DATAEND)); ++ dev->ep0state = WAIT_FOR_SETUP; ++ } else { ++ DEBUG_EP0("%s: not finished\n", __FUNCTION__); ++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_INPKTRDY); ++ } ++ ++ if (need_zlp) { ++ DEBUG_EP0("%s: Need ZLP!\n", __FUNCTION__); ++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_INPKTRDY); ++ dev->ep0state = DATA_STATE_NEED_ZLP; ++ } ++ ++ return 1; ++} ++ ++static int jz4740_handle_get_status(struct jz4740_udc *dev, ++ struct usb_ctrlrequest *ctrl) ++{ ++ struct jz4740_ep *ep0 = &dev->ep[0]; ++ struct jz4740_ep *qep; ++ int reqtype = (ctrl->bRequestType & USB_RECIP_MASK); ++ uint16_t val = 0; ++ ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ ++ if (reqtype == USB_RECIP_INTERFACE) { ++ /* This is not supported. ++ * And according to the USB spec, this one does nothing.. ++ * Just return 0 ++ */ ++ DEBUG_SETUP("GET_STATUS: USB_RECIP_INTERFACE\n"); ++ } else if (reqtype == USB_RECIP_DEVICE) { ++ DEBUG_SETUP("GET_STATUS: USB_RECIP_DEVICE\n"); ++ val |= (1 << 0); /* Self powered */ ++ /*val |= (1<<1); *//* Remote wakeup */ ++ } else if (reqtype == USB_RECIP_ENDPOINT) { ++ int ep_num = (ctrl->wIndex & ~USB_DIR_IN); ++ ++ DEBUG_SETUP ++ ("GET_STATUS: USB_RECIP_ENDPOINT (%d), ctrl->wLength = %d\n", ++ ep_num, ctrl->wLength); ++ ++ if (ctrl->wLength > 2 || ep_num > 3) ++ return -EOPNOTSUPP; ++ ++ qep = &dev->ep[ep_num]; ++ if (ep_is_in(qep) != ((ctrl->wIndex & USB_DIR_IN) ? 1 : 0) ++ && ep_index(qep) != 0) { ++ return -EOPNOTSUPP; ++ } ++ ++ jz_udc_select_ep(qep); ++ ++ /* Return status on next IN token */ ++ switch (qep->type) { ++ case ep_control: ++ val = ++ (usb_readb(dev, qep->csr) & USB_CSR0_SENDSTALL) == ++ USB_CSR0_SENDSTALL; ++ break; ++ case ep_bulk_in: ++ case ep_interrupt: ++ val = ++ (usb_readb(dev, qep->csr) & USB_INCSR_SENDSTALL) == ++ USB_INCSR_SENDSTALL; ++ break; ++ case ep_bulk_out: ++ val = ++ (usb_readb(dev, qep->csr) & USB_OUTCSR_SENDSTALL) == ++ USB_OUTCSR_SENDSTALL; ++ break; ++ } ++ ++ /* Back to EP0 index */ ++ jz_udc_set_index(dev, 0); ++ ++ DEBUG_SETUP("GET_STATUS, ep: %d (%x), val = %d\n", ep_num, ++ ctrl->wIndex, val); ++ } else { ++ DEBUG_SETUP("Unknown REQ TYPE: %d\n", reqtype); ++ return -EOPNOTSUPP; ++ } ++ ++ /* Clear "out packet ready" */ ++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SVDOUTPKTRDY); ++ /* Put status to FIFO */ ++ jz4740_fifo_write(ep0, (uint8_t *)&val, sizeof(val)); ++ /* Issue "In packet ready" */ ++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_INPKTRDY | USB_CSR0_DATAEND)); ++ ++ return 0; ++} ++ ++/* ++ * WAIT_FOR_SETUP (OUTPKTRDY) ++ * - read data packet from EP0 FIFO ++ * - decode command ++ * - if error ++ * set USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND | USB_CSR0_SENDSTALL bits ++ * - else ++ * set USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND bits ++ */ ++static void jz4740_ep0_setup(struct jz4740_udc *dev, uint32_t csr) ++{ ++ struct jz4740_ep *ep = &dev->ep[0]; ++ struct usb_ctrlrequest ctrl; ++ int i; ++ ++ DEBUG_SETUP("%s: %x\n", __FUNCTION__, csr); ++ ++ /* Nuke all previous transfers */ ++ nuke(ep, -EPROTO); ++ ++ /* read control req from fifo (8 bytes) */ ++ jz4740_fifo_read(ep, (unsigned char *)&ctrl, 8); ++ ++ DEBUG_SETUP("SETUP %02x.%02x v%04x i%04x l%04x\n", ++ ctrl.bRequestType, ctrl.bRequest, ++ ctrl.wValue, ctrl.wIndex, ctrl.wLength); ++ ++ /* Set direction of EP0 */ ++ if (likely(ctrl.bRequestType & USB_DIR_IN)) { ++ ep->bEndpointAddress |= USB_DIR_IN; ++ } else { ++ ep->bEndpointAddress &= ~USB_DIR_IN; ++ } ++ ++ /* Handle some SETUP packets ourselves */ ++ switch (ctrl.bRequest) { ++ case USB_REQ_SET_ADDRESS: ++ if (ctrl.bRequestType != (USB_TYPE_STANDARD | USB_RECIP_DEVICE)) ++ break; ++ ++ DEBUG_SETUP("USB_REQ_SET_ADDRESS (%d)\n", ctrl.wValue); ++ udc_set_address(dev, ctrl.wValue); ++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND)); ++ return; ++ ++ case USB_REQ_SET_CONFIGURATION: ++ if (ctrl.bRequestType != (USB_TYPE_STANDARD | USB_RECIP_DEVICE)) ++ break; ++ ++ DEBUG_SETUP("USB_REQ_SET_CONFIGURATION (%d)\n", ctrl.wValue); ++/* usb_setb(JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND));*/ ++ ++ /* Enable RESUME and SUSPEND interrupts */ ++ usb_setb(dev, JZ_REG_UDC_INTRUSBE, (USB_INTR_RESUME | USB_INTR_SUSPEND)); ++ break; ++ ++ case USB_REQ_SET_INTERFACE: ++ if (ctrl.bRequestType != (USB_TYPE_STANDARD | USB_RECIP_DEVICE)) ++ break; ++ ++ DEBUG_SETUP("USB_REQ_SET_INTERFACE (%d)\n", ctrl.wValue); ++/* usb_setb(JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND));*/ ++ break; ++ ++ case USB_REQ_GET_STATUS: ++ if (jz4740_handle_get_status(dev, &ctrl) == 0) ++ return; ++ ++ case USB_REQ_CLEAR_FEATURE: ++ case USB_REQ_SET_FEATURE: ++ if (ctrl.bRequestType == USB_RECIP_ENDPOINT) { ++ struct jz4740_ep *qep; ++ int ep_num = (ctrl.wIndex & 0x0f); ++ ++ /* Support only HALT feature */ ++ if (ctrl.wValue != 0 || ctrl.wLength != 0 ++ || ep_num > 3 || ep_num < 1) ++ break; ++ ++ qep = &dev->ep[ep_num]; ++ spin_unlock(&dev->lock); ++ if (ctrl.bRequest == USB_REQ_SET_FEATURE) { ++ DEBUG_SETUP("SET_FEATURE (%d)\n", ++ ep_num); ++ jz4740_set_halt(&qep->ep, 1); ++ } else { ++ DEBUG_SETUP("CLR_FEATURE (%d)\n", ++ ep_num); ++ jz4740_set_halt(&qep->ep, 0); ++ } ++ spin_lock(&dev->lock); ++ ++ jz_udc_set_index(dev, 0); ++ ++ /* Reply with a ZLP on next IN token */ ++ usb_setb(dev, JZ_REG_UDC_CSR0, ++ (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND)); ++ return; ++ } ++ break; ++ ++ default: ++ break; ++ } ++ ++ /* gadget drivers see class/vendor specific requests, ++ * {SET,GET}_{INTERFACE,DESCRIPTOR,CONFIGURATION}, ++ * and more. ++ */ ++ if (dev->driver) { ++ /* device-2-host (IN) or no data setup command, process immediately */ ++ spin_unlock(&dev->lock); ++ ++ i = dev->driver->setup(&dev->gadget, &ctrl); ++ spin_lock(&dev->lock); ++ ++ if (unlikely(i < 0)) { ++ /* setup processing failed, force stall */ ++ DEBUG_SETUP ++ (" --> ERROR: gadget setup FAILED (stalling), setup returned %d\n", ++ i); ++ jz_udc_set_index(dev, 0); ++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND | USB_CSR0_SENDSTALL)); ++ ++ /* ep->stopped = 1; */ ++ dev->ep0state = WAIT_FOR_SETUP; ++ } ++ else { ++ DEBUG_SETUP("gadget driver setup ok (%d)\n", ctrl.wLength); ++/* if (!ctrl.wLength) { ++ usb_setb(JZ_REG_UDC_CSR0, USB_CSR0_SVDOUTPKTRDY); ++ }*/ ++ } ++ } ++} ++ ++/* ++ * DATA_STATE_NEED_ZLP ++ */ ++static void jz4740_ep0_in_zlp(struct jz4740_udc *dev, uint32_t csr) ++{ ++ DEBUG_EP0("%s: %x\n", __FUNCTION__, csr); ++ ++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_INPKTRDY | USB_CSR0_DATAEND)); ++ dev->ep0state = WAIT_FOR_SETUP; ++} ++ ++/* ++ * handle ep0 interrupt ++ */ ++static void jz4740_handle_ep0(struct jz4740_udc *dev, uint32_t intr) ++{ ++ struct jz4740_ep *ep = &dev->ep[0]; ++ uint32_t csr; ++ ++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__); ++ /* Set index 0 */ ++ jz_udc_set_index(dev, 0); ++ csr = usb_readb(dev, JZ_REG_UDC_CSR0); ++ ++ DEBUG_EP0("%s: csr = %x state = \n", __FUNCTION__, csr);//, state_names[dev->ep0state]); ++ ++ /* ++ * if SENT_STALL is set ++ * - clear the SENT_STALL bit ++ */ ++ if (csr & USB_CSR0_SENTSTALL) { ++ DEBUG_EP0("%s: USB_CSR0_SENTSTALL is set: %x\n", __FUNCTION__, csr); ++ usb_clearb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SENDSTALL | USB_CSR0_SENTSTALL); ++ nuke(ep, -ECONNABORTED); ++ dev->ep0state = WAIT_FOR_SETUP; ++ return; ++ } ++ ++ /* ++ * if a transfer is in progress && INPKTRDY and OUTPKTRDY are clear ++ * - fill EP0 FIFO ++ * - if last packet ++ * - set IN_PKT_RDY | DATA_END ++ * - else ++ * set IN_PKT_RDY ++ */ ++ if (!(csr & (USB_CSR0_INPKTRDY | USB_CSR0_OUTPKTRDY))) { ++ DEBUG_EP0("%s: INPKTRDY and OUTPKTRDY are clear\n", ++ __FUNCTION__); ++ ++ switch (dev->ep0state) { ++ case DATA_STATE_XMIT: ++ DEBUG_EP0("continue with DATA_STATE_XMIT\n"); ++ jz4740_ep0_in(dev, csr); ++ return; ++ case DATA_STATE_NEED_ZLP: ++ DEBUG_EP0("continue with DATA_STATE_NEED_ZLP\n"); ++ jz4740_ep0_in_zlp(dev, csr); ++ return; ++ default: ++ /* Stall? */ ++// DEBUG_EP0("Odd state!! state = %s\n", ++// state_names[dev->ep0state]); ++ dev->ep0state = WAIT_FOR_SETUP; ++ /* nuke(ep, 0); */ ++ /* usb_setb(ep->csr, USB_CSR0_SENDSTALL); */ ++// break; ++ return; ++ } ++ } ++ ++ /* ++ * if SETUPEND is set ++ * - abort the last transfer ++ * - set SERVICED_SETUP_END_BIT ++ */ ++ if (csr & USB_CSR0_SETUPEND) { ++ DEBUG_EP0("%s: USB_CSR0_SETUPEND is set: %x\n", __FUNCTION__, csr); ++ ++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SVDSETUPEND); ++ nuke(ep, 0); ++ dev->ep0state = WAIT_FOR_SETUP; ++ } ++ ++ /* ++ * if USB_CSR0_OUTPKTRDY is set ++ * - read data packet from EP0 FIFO ++ * - decode command ++ * - if error ++ * set SVDOUTPKTRDY | DATAEND | SENDSTALL bits ++ * - else ++ * set SVDOUTPKTRDY | DATAEND bits ++ */ ++ if (csr & USB_CSR0_OUTPKTRDY) { ++ ++ DEBUG_EP0("%s: EP0_OUT_PKT_RDY is set: %x\n", __FUNCTION__, ++ csr); ++ ++ switch (dev->ep0state) { ++ case WAIT_FOR_SETUP: ++ DEBUG_EP0("WAIT_FOR_SETUP\n"); ++ jz4740_ep0_setup(dev, csr); ++ break; ++ ++ case DATA_STATE_RECV: ++ DEBUG_EP0("DATA_STATE_RECV\n"); ++ jz4740_ep0_out(dev, csr, 0); ++ break; ++ ++ default: ++ /* send stall? */ ++ DEBUG_EP0("strange state!! 2. send stall? state = %d\n", ++ dev->ep0state); ++ break; ++ } ++ } ++} ++ ++static void jz4740_ep0_kick(struct jz4740_udc *dev, struct jz4740_ep *ep) ++{ ++ uint32_t csr; ++ ++ jz_udc_set_index(dev, 0); ++ ++ DEBUG_EP0("%s: %x\n", __FUNCTION__, csr); ++ ++ /* Clear "out packet ready" */ ++ ++ if (ep_is_in(ep)) { ++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SVDOUTPKTRDY); ++ csr = usb_readb(dev, JZ_REG_UDC_CSR0); ++ dev->ep0state = DATA_STATE_XMIT; ++ jz4740_ep0_in(dev, csr); ++ } else { ++ csr = usb_readb(dev, JZ_REG_UDC_CSR0); ++ dev->ep0state = DATA_STATE_RECV; ++ jz4740_ep0_out(dev, csr, 1); ++ } ++} ++ ++/** Handle USB RESET interrupt ++ */ ++static void jz4740_reset_irq(struct jz4740_udc *dev) ++{ ++ dev->gadget.speed = (usb_readb(dev, JZ_REG_UDC_POWER) & USB_POWER_HSMODE) ? ++ USB_SPEED_HIGH : USB_SPEED_FULL; ++ ++ DEBUG_SETUP("%s: address = %d, speed = %s\n", __FUNCTION__, 0, ++ (dev->gadget.speed == USB_SPEED_HIGH) ? "HIGH":"FULL" ); ++} ++ ++/* ++ * jz4740 usb device interrupt handler. ++ */ ++static irqreturn_t jz4740_udc_irq(int irq, void *devid) ++{ ++ struct jz4740_udc *jz4740_udc = devid; ++ uint8_t index; ++ ++ uint32_t intr_usb = usb_readb(jz4740_udc, JZ_REG_UDC_INTRUSB) & 0x7; /* mask SOF */ ++ uint32_t intr_in = usb_readw(jz4740_udc, JZ_REG_UDC_INTRIN); ++ uint32_t intr_out = usb_readw(jz4740_udc, JZ_REG_UDC_INTROUT); ++ uint32_t intr_dma = usb_readb(jz4740_udc, JZ_REG_UDC_INTR); ++ ++ if (!intr_usb && !intr_in && !intr_out && !intr_dma) ++ return IRQ_HANDLED; ++ ++ ++ DEBUG("intr_out=%x intr_in=%x intr_usb=%x\n", ++ intr_out, intr_in, intr_usb); ++ ++ spin_lock(&jz4740_udc->lock); ++ index = usb_readb(jz4740_udc, JZ_REG_UDC_INDEX); ++ ++ /* Check for resume from suspend mode */ ++ if ((intr_usb & USB_INTR_RESUME) && ++ (usb_readb(jz4740_udc, JZ_REG_UDC_INTRUSBE) & USB_INTR_RESUME)) { ++ DEBUG("USB resume\n"); ++ jz4740_udc->driver->resume(&jz4740_udc->gadget); /* We have suspend(), so we must have resume() too. */ ++ } ++ ++ /* Check for system interrupts */ ++ if (intr_usb & USB_INTR_RESET) { ++ DEBUG("USB reset\n"); ++ jz4740_reset_irq(jz4740_udc); ++ } ++ ++ /* Check for endpoint 0 interrupt */ ++ if (intr_in & USB_INTR_EP0) { ++ DEBUG("USB_INTR_EP0 (control)\n"); ++ jz4740_handle_ep0(jz4740_udc, intr_in); ++ } ++ ++ /* Check for Bulk-IN DMA interrupt */ ++ if (intr_dma & 0x1) { ++ int ep_num; ++ struct jz4740_ep *ep; ++ ep_num = (usb_readl(jz4740_udc, JZ_REG_UDC_CNTL1) >> 4) & 0xf; ++ ep = &jz4740_udc->ep[ep_num + 1]; ++ jz_udc_select_ep(ep); ++ usb_setb(jz4740_udc, ep->csr, USB_INCSR_INPKTRDY); ++/* jz4740_in_epn(jz4740_udc, ep_num, intr_in);*/ ++ } ++ ++ /* Check for Bulk-OUT DMA interrupt */ ++ if (intr_dma & 0x2) { ++ int ep_num; ++ ep_num = (usb_readl(jz4740_udc, JZ_REG_UDC_CNTL2) >> 4) & 0xf; ++ jz4740_out_epn(jz4740_udc, ep_num, intr_out); ++ } ++ ++ /* Check for each configured endpoint interrupt */ ++ if (intr_in & USB_INTR_INEP1) { ++ DEBUG("USB_INTR_INEP1\n"); ++ jz4740_in_epn(jz4740_udc, 1, intr_in); ++ } ++ ++ if (intr_in & USB_INTR_INEP2) { ++ DEBUG("USB_INTR_INEP2\n"); ++ jz4740_in_epn(jz4740_udc, 2, intr_in); ++ } ++ ++ if (intr_out & USB_INTR_OUTEP1) { ++ DEBUG("USB_INTR_OUTEP1\n"); ++ jz4740_out_epn(jz4740_udc, 1, intr_out); ++ } ++ ++ /* Check for suspend mode */ ++ if ((intr_usb & USB_INTR_SUSPEND) && ++ (usb_readb(jz4740_udc, JZ_REG_UDC_INTRUSBE) & USB_INTR_SUSPEND)) { ++ DEBUG("USB suspend\n"); ++ jz4740_udc->driver->suspend(&jz4740_udc->gadget); ++ /* Host unloaded from us, can do something, such as flushing ++ the NAND block cache etc. */ ++ } ++ ++ jz_udc_set_index(jz4740_udc, index); ++ ++ spin_unlock(&jz4740_udc->lock); ++ ++ return IRQ_HANDLED; ++} ++ ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++ ++static inline struct jz4740_udc *gadget_to_udc(struct usb_gadget *gadget) ++{ ++ return container_of(gadget, struct jz4740_udc, gadget); ++} ++ ++static int jz4740_udc_get_frame(struct usb_gadget *_gadget) ++{ ++ DEBUG("%s, %p\n", __FUNCTION__, _gadget); ++ return usb_readw(gadget_to_udc(_gadget), JZ_REG_UDC_FRAME); ++} ++ ++static int jz4740_udc_wakeup(struct usb_gadget *_gadget) ++{ ++ /* host may not have enabled remote wakeup */ ++ /*if ((UDCCS0 & UDCCS0_DRWF) == 0) ++ return -EHOSTUNREACH; ++ udc_set_mask_UDCCR(UDCCR_RSM); */ ++ return -ENOTSUPP; ++} ++ ++static int jz4740_udc_pullup(struct usb_gadget *_gadget, int on) ++{ ++ struct jz4740_udc *udc = gadget_to_udc(_gadget); ++ unsigned long flags; ++ ++ local_irq_save(flags); ++ ++ if (on) { ++ udc->state = UDC_STATE_ENABLE; ++ udc_enable(udc); ++ } else { ++ udc->state = UDC_STATE_DISABLE; ++ udc_disable(udc); ++ } ++ ++ local_irq_restore(flags); ++ ++ return 0; ++} ++ ++ ++static const struct usb_gadget_ops jz4740_udc_ops = { ++ .get_frame = jz4740_udc_get_frame, ++ .wakeup = jz4740_udc_wakeup, ++ .pullup = jz4740_udc_pullup, ++ .start = jz4740_udc_start, ++ .stop = jz4740_udc_stop, ++}; ++ ++static struct usb_ep_ops jz4740_ep_ops = { ++ .enable = jz4740_ep_enable, ++ .disable = jz4740_ep_disable, ++ ++ .alloc_request = jz4740_alloc_request, ++ .free_request = jz4740_free_request, ++ ++ .queue = jz4740_queue, ++ .dequeue = jz4740_dequeue, ++ ++ .set_halt = jz4740_set_halt, ++ .fifo_status = jz4740_fifo_status, ++ .fifo_flush = jz4740_fifo_flush, ++}; ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static struct jz4740_udc jz4740_udc_controller = { ++ .gadget = { ++ .ops = &jz4740_udc_ops, ++ .ep0 = &jz4740_udc_controller.ep[0].ep, ++ .name = "jz4740-udc", ++ .dev = { ++ .init_name = "gadget", ++ }, ++ }, ++ ++ /* control endpoint */ ++ .ep[0] = { ++ .ep = { ++ .name = "ep0", ++ .ops = &jz4740_ep_ops, ++ .maxpacket = EP0_MAXPACKETSIZE, ++ }, ++ .dev = &jz4740_udc_controller, ++ ++ .bEndpointAddress = 0, ++ .bmAttributes = 0, ++ ++ .type = ep_control, ++ .fifo = JZ_REG_UDC_EP_FIFO(0), ++ .csr = JZ_REG_UDC_CSR0, ++ }, ++ ++ /* bulk out endpoint */ ++ .ep[1] = { ++ .ep = { ++ .name = "ep1out-bulk", ++ .ops = &jz4740_ep_ops, ++ .maxpacket = EPBULK_MAXPACKETSIZE, ++ }, ++ .dev = &jz4740_udc_controller, ++ ++ .bEndpointAddress = 1, ++ .bmAttributes = USB_ENDPOINT_XFER_BULK, ++ ++ .type = ep_bulk_out, ++ .fifo = JZ_REG_UDC_EP_FIFO(1), ++ .csr = JZ_REG_UDC_OUTCSR, ++ }, ++ ++ /* bulk in endpoint */ ++ .ep[2] = { ++ .ep = { ++ .name = "ep1in-bulk", ++ .ops = &jz4740_ep_ops, ++ .maxpacket = EPBULK_MAXPACKETSIZE, ++ }, ++ .dev = &jz4740_udc_controller, ++ ++ .bEndpointAddress = 1 | USB_DIR_IN, ++ .bmAttributes = USB_ENDPOINT_XFER_BULK, ++ ++ .type = ep_bulk_in, ++ .fifo = JZ_REG_UDC_EP_FIFO(1), ++ .csr = JZ_REG_UDC_INCSR, ++ }, ++ ++ /* interrupt in endpoint */ ++ .ep[3] = { ++ .ep = { ++ .name = "ep2in-int", ++ .ops = &jz4740_ep_ops, ++ .maxpacket = EPINTR_MAXPACKETSIZE, ++ }, ++ .dev = &jz4740_udc_controller, ++ ++ .bEndpointAddress = 2 | USB_DIR_IN, ++ .bmAttributes = USB_ENDPOINT_XFER_INT, ++ ++ .type = ep_interrupt, ++ .fifo = JZ_REG_UDC_EP_FIFO(2), ++ .csr = JZ_REG_UDC_INCSR, ++ }, ++}; ++ ++static int __devinit jz4740_udc_probe(struct platform_device *pdev) ++{ ++ struct jz4740_udc *jz4740_udc = &jz4740_udc_controller; ++ int ret; ++ ++ spin_lock_init(&jz4740_udc->lock); ++ ++ jz4740_udc->dev = &pdev->dev; ++ jz4740_udc->gadget.dev.parent = &pdev->dev; ++ jz4740_udc->gadget.dev.dma_mask = pdev->dev.dma_mask; ++ ++ ret = device_register(&jz4740_udc->gadget.dev); ++ if (ret) ++ return ret; ++ ++ jz4740_udc->clk = clk_get(&pdev->dev, "udc"); ++ if (IS_ERR(jz4740_udc->clk)) { ++ ret = PTR_ERR(jz4740_udc->clk); ++ dev_err(&pdev->dev, "Failed to get udc clock: %d\n", ret); ++ goto err_device_unregister; ++ } ++ ++ platform_set_drvdata(pdev, jz4740_udc); ++ ++ jz4740_udc->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ ++ if (!jz4740_udc->mem) { ++ ret = -ENOENT; ++ dev_err(&pdev->dev, "Failed to get mmio memory resource\n"); ++ goto err_clk_put; ++ } ++ ++ jz4740_udc->mem = request_mem_region(jz4740_udc->mem->start, ++ resource_size(jz4740_udc->mem), pdev->name); ++ ++ if (!jz4740_udc->mem) { ++ ret = -EBUSY; ++ dev_err(&pdev->dev, "Failed to request mmio memory region\n"); ++ goto err_device_unregister; ++ } ++ ++ jz4740_udc->base = ioremap(jz4740_udc->mem->start, resource_size(jz4740_udc->mem)); ++ ++ if (!jz4740_udc->base) { ++ ret = -EBUSY; ++ dev_err(&pdev->dev, "Failed to ioremap mmio memory\n"); ++ goto err_release_mem_region; ++ } ++ ++ jz4740_udc->irq = platform_get_irq(pdev, 0); ++ ret = request_irq(jz4740_udc->irq, jz4740_udc_irq, 0, pdev->name, ++ jz4740_udc); ++ if (ret) { ++ dev_err(&pdev->dev, "Failed to request irq: %d\n", ret); ++ goto err_iounmap; ++ } ++ ++ ret = usb_add_gadget_udc(&pdev->dev, &jz4740_udc->gadget); ++ if (ret) { ++ dev_err(&pdev->dev, "Failed to add gadget: %d\n", ret); ++ goto err_free_irq; ++ } ++ ++ udc_disable(jz4740_udc); ++ udc_reinit(jz4740_udc); ++ ++ return 0; ++ ++err_free_irq: ++ free_irq(jz4740_udc->irq, pdev); ++err_iounmap: ++ iounmap(jz4740_udc->base); ++err_release_mem_region: ++ release_mem_region(jz4740_udc->mem->start, resource_size(jz4740_udc->mem)); ++err_clk_put: ++ clk_put(jz4740_udc->clk); ++err_device_unregister: ++ device_unregister(&jz4740_udc->gadget.dev); ++ platform_set_drvdata(pdev, NULL); ++ ++ return ret; ++} ++ ++static int __devexit jz4740_udc_remove(struct platform_device *pdev) ++{ ++ struct jz4740_udc *dev = platform_get_drvdata(pdev); ++ ++ usb_del_gadget_udc(&dev->gadget); ++ if (dev->driver) ++ return -EBUSY; ++ ++ udc_disable(dev); ++ ++ free_irq(dev->irq, dev); ++ iounmap(dev->base); ++ release_mem_region(dev->mem->start, resource_size(dev->mem)); ++ clk_put(dev->clk); ++ ++ platform_set_drvdata(pdev, NULL); ++ device_unregister(&dev->gadget.dev); ++ ++ return 0; ++} ++ ++#ifdef CONFIG_PM ++ ++static int jz4740_udc_suspend(struct device *dev) ++{ ++ struct jz4740_udc *jz4740_udc = dev_get_drvdata(dev); ++ ++ if (jz4740_udc->state == UDC_STATE_ENABLE) ++ udc_disable(jz4740_udc); ++ ++ return 0; ++} ++ ++static int jz4740_udc_resume(struct device *dev) ++{ ++ struct jz4740_udc *jz4740_udc = dev_get_drvdata(dev); ++ ++ if (jz4740_udc->state == UDC_STATE_ENABLE) ++ udc_enable(jz4740_udc); ++ ++ return 0; ++} ++ ++static SIMPLE_DEV_PM_OPS(jz4740_udc_pm_ops, jz4740_udc_suspend, jz4740_udc_resume); ++#define JZ4740_UDC_PM_OPS (&jz4740_udc_pm_ops) ++ ++#else ++#define JZ4740_UDC_PM_OPS NULL ++#endif ++ ++static struct platform_driver udc_driver = { ++ .probe = jz4740_udc_probe, ++ .remove = __devexit_p(jz4740_udc_remove), ++ .driver = { ++ .name = "jz-udc", ++ .owner = THIS_MODULE, ++ .pm = JZ4740_UDC_PM_OPS, ++ }, ++}; ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int __init udc_init (void) ++{ ++ return platform_driver_register(&udc_driver); ++} ++module_init(udc_init); ++ ++static void __exit udc_exit (void) ++{ ++ platform_driver_unregister(&udc_driver); ++} ++module_exit(udc_exit); ++ ++MODULE_DESCRIPTION("JZ4740 USB Device Controller"); ++MODULE_AUTHOR("Wei Jianli <jlwei@ingenic.cn>"); ++MODULE_LICENSE("GPL"); +--- /dev/null ++++ b/drivers/usb/gadget/jz4740_udc.h +@@ -0,0 +1,101 @@ ++/* ++ * linux/drivers/usb/gadget/jz4740_udc.h ++ * ++ * Ingenic JZ4740 on-chip high speed USB device controller ++ * ++ * Copyright (C) 2006 Ingenic Semiconductor Inc. ++ * Author: <jlwei@ingenic.cn> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ */ ++ ++#ifndef __USB_GADGET_JZ4740_H__ ++#define __USB_GADGET_JZ4740_H__ ++ ++/*-------------------------------------------------------------------------*/ ++ ++// Max packet size ++#define EP0_MAXPACKETSIZE 64 ++#define EPBULK_MAXPACKETSIZE 512 ++#define EPINTR_MAXPACKETSIZE 64 ++ ++#define UDC_MAX_ENDPOINTS 4 ++ ++/*-------------------------------------------------------------------------*/ ++ ++enum ep_type { ++ ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt ++}; ++ ++struct jz4740_ep { ++ struct usb_ep ep; ++ struct jz4740_udc *dev; ++ ++ const struct usb_endpoint_descriptor *desc; ++ ++ uint8_t stopped; ++ uint8_t bEndpointAddress; ++ uint8_t bmAttributes; ++ ++ enum ep_type type; ++ size_t fifo; ++ uint32_t csr; ++ ++ uint32_t reg_addr; ++ struct list_head queue; ++}; ++ ++struct jz4740_request { ++ struct usb_request req; ++ struct list_head queue; ++}; ++ ++enum ep0state { ++ WAIT_FOR_SETUP, /* between STATUS ack and SETUP report */ ++ DATA_STATE_XMIT, /* data tx stage */ ++ DATA_STATE_NEED_ZLP, /* data tx zlp stage */ ++ WAIT_FOR_OUT_STATUS, /* status stages */ ++ DATA_STATE_RECV, /* data rx stage */ ++}; ++ ++/* For function binding with UDC Disable - Added by River */ ++typedef enum { ++ UDC_STATE_ENABLE = 0, ++ UDC_STATE_DISABLE, ++}udc_state_t; ++ ++struct jz4740_udc { ++ struct usb_gadget gadget; ++ struct usb_gadget_driver *driver; ++ struct device *dev; ++ spinlock_t lock; ++ unsigned long lock_flags; ++ ++ enum ep0state ep0state; ++ struct jz4740_ep ep[UDC_MAX_ENDPOINTS]; ++ ++ udc_state_t state; ++ ++ struct resource *mem; ++ void __iomem *base; ++ int irq; ++ ++ struct clk *clk; ++}; ++ ++#define ep_maxpacket(EP) ((EP)->ep.maxpacket) ++ ++static inline bool ep_is_in(const struct jz4740_ep *ep) ++{ ++ return (ep->bEndpointAddress & USB_DIR_IN) == USB_DIR_IN; ++} ++ ++static inline uint8_t ep_index(const struct jz4740_ep *ep) ++{ ++ return ep->bEndpointAddress & 0xf; ++} ++ ++#endif /* __USB_GADGET_JZ4740_H__ */ diff --git a/target/linux/xburst/patches-3.8/0003-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch b/target/linux/xburst/patches-3.8/0003-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch new file mode 100644 index 0000000..2cc3cb0 --- /dev/null +++ b/target/linux/xburst/patches-3.8/0003-NAND-Optimize-NAND_ECC_HW_OOB_FIRST-read.patch @@ -0,0 +1,31 @@ +From b971c50dc50c07f981a1619f977e7509db9c4eac Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen <lars@metafoo.de> +Date: Sat, 26 Feb 2011 15:30:07 +0100 +Subject: [PATCH 03/21] NAND: Optimize NAND_ECC_HW_OOB_FIRST read + +Avoid sending unnecessary READ commands to the chip. +--- + drivers/mtd/nand/nand_base.c | 14 ++++++++++---- + 1 files changed, 10 insertions(+), 4 deletions(-) + +--- a/drivers/mtd/nand/nand_base.c ++++ b/drivers/mtd/nand/nand_base.c +@@ -1299,9 +1299,15 @@ static int nand_read_page_hwecc_oob_firs + unsigned int max_bitflips = 0; + + /* Read the OOB area first */ +- chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); +- chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); +- chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page); ++ if (mtd->writesize > 512) { ++ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page); ++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, 0, -1); ++ } else { ++ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); ++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page); ++ } + + for (i = 0; i < chip->ecc.total; i++) + ecc_code[i] = chip->oob_poi[eccpos[i]]; diff --git a/target/linux/xburst/patches-3.8/0004-NAND-Add-support-for-subpage-reads-for-NAND_ECC_HW_O.patch b/target/linux/xburst/patches-3.8/0004-NAND-Add-support-for-subpage-reads-for-NAND_ECC_HW_O.patch new file mode 100644 index 0000000..194df59 --- /dev/null +++ b/target/linux/xburst/patches-3.8/0004-NAND-Add-support-for-subpage-reads-for-NAND_ECC_HW_O.patch @@ -0,0 +1,131 @@ +From 297d8a7bdfb755778d4189ca2861dd2a6125e972 Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen <lars@metafoo.de> +Date: Tue, 15 Mar 2011 12:33:41 +0100 +Subject: [PATCH 04/21] NAND: Add support for subpage reads for + NAND_ECC_HW_OOB_FIRST + +--- + drivers/mtd/nand/nand_base.c | 78 ++++++++++++++++++++++++++++++++++++++++-- + include/linux/mtd/nand.h | 8 ++-- + 2 files changed, 79 insertions(+), 7 deletions(-) + +--- a/drivers/mtd/nand/nand_base.c ++++ b/drivers/mtd/nand/nand_base.c +@@ -1139,7 +1139,7 @@ static int nand_read_page_swecc(struct m + * @bufpoi: buffer to store read data + */ + static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, +- uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi) ++ uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi, int page) + { + int start_step, end_step, num_steps; + uint32_t *eccpos = chip->ecc.layout->eccpos; +@@ -1331,6 +1331,75 @@ static int nand_read_page_hwecc_oob_firs + } + + /** ++ * nand_read_subpage_hwecc_oob_first - [REPLACABLE] hw ecc based sub-page read function ++ * @mtd: mtd info structure ++ * @chip: nand chip info structure ++ * @data_offs: offset of requested data within the page ++ * @readlen: data length ++ * @bufpoi: buffer to store read data ++ * @page: page number to read ++ * ++ * Hardware ECC for large page chips, require OOB to be read first. ++ * For this ECC mode, the write_page method is re-used from ECC_HW. ++ * These methods read/write ECC from the OOB area, unlike the ++ * ECC_HW_SYNDROME support with multiple ECC steps, follows the ++ * "infix ECC" scheme and reads/writes ECC from the data area, by ++ * overwriting the NAND manufacturer bad block markings. ++ */ ++static int nand_read_subpage_hwecc_oob_first(struct mtd_info *mtd, struct nand_chip *chip, ++ uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi, int page) ++{ ++ int start_step, end_step, num_steps; ++ uint32_t *eccpos = chip->ecc.layout->eccpos; ++ uint8_t *p; ++ int data_col_addr; ++ int eccsize = chip->ecc.size; ++ int eccbytes = chip->ecc.bytes; ++ uint8_t *ecc_code = chip->buffers->ecccode; ++ uint8_t *ecc_calc = chip->buffers->ecccalc; ++ int i; ++ ++ /* Column address wihin the page aligned to ECC size */ ++ start_step = data_offs / chip->ecc.size; ++ end_step = (data_offs + readlen - 1) / chip->ecc.size; ++ num_steps = end_step - start_step + 1; ++ ++ data_col_addr = start_step * chip->ecc.size; ++ ++ /* Read the OOB area first */ ++ if (mtd->writesize > 512) { ++ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page); ++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, data_col_addr, -1); ++ } else { ++ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); ++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ chip->cmdfunc(mtd, NAND_CMD_READ0, data_col_addr, page); ++ } ++ ++ for (i = 0; i < chip->ecc.total; i++) ++ ecc_code[i] = chip->oob_poi[eccpos[i]]; ++ ++ p = bufpoi + data_col_addr; ++ ++ for (i = eccbytes * start_step; num_steps; num_steps--, i += eccbytes, p += eccsize) { ++ int stat; ++ ++ chip->ecc.hwctl(mtd, NAND_ECC_READ); ++ chip->read_buf(mtd, p, eccsize); ++ chip->ecc.calculate(mtd, p, &ecc_calc[i]); ++ ++ stat = chip->ecc.correct(mtd, p, &ecc_code[i], NULL); ++ if (stat < 0) ++ mtd->ecc_stats.failed++; ++ else ++ mtd->ecc_stats.corrected += stat; ++ } ++ ++ return 0; ++} ++ ++/** + * nand_read_page_syndrome - [REPLACEABLE] hardware ECC syndrome based page read + * @mtd: mtd info structure + * @chip: nand chip info structure +@@ -1495,7 +1564,7 @@ static int nand_do_read_ops(struct mtd_i + else if (!aligned && NAND_HAS_SUBPAGE_READ(chip) && + !oob) + ret = chip->ecc.read_subpage(mtd, chip, +- col, bytes, bufpoi); ++ col, bytes, bufpoi, page); + else + ret = chip->ecc.read_page(mtd, chip, bufpoi, + oob_required, page); +@@ -3451,8 +3520,11 @@ int nand_scan_tail(struct mtd_info *mtd) + "hardware ECC not possible\n"); + BUG(); + } +- if (!chip->ecc.read_page) ++ if (!chip->ecc.read_page) { + chip->ecc.read_page = nand_read_page_hwecc_oob_first; ++ if (!chip->ecc.read_subpage) ++ chip->ecc.read_subpage = nand_read_subpage_hwecc_oob_first; ++ } + + case NAND_ECC_HW: + /* Use standard hwecc read page function? */ +--- a/include/linux/mtd/nand.h ++++ b/include/linux/mtd/nand.h +@@ -384,7 +384,7 @@ struct nand_ecc_ctrl { + int (*read_page)(struct mtd_info *mtd, struct nand_chip *chip, + uint8_t *buf, int oob_required, int page); + int (*read_subpage)(struct mtd_info *mtd, struct nand_chip *chip, +- uint32_t offs, uint32_t len, uint8_t *buf); ++ uint32_t offs, uint32_t len, uint8_t *buf, int page); + int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip, + const uint8_t *buf, int oob_required); + int (*write_oob_raw)(struct mtd_info *mtd, struct nand_chip *chip, diff --git a/target/linux/xburst/patches-3.8/0005-NAND-Optimize-reading-the-eec-data-for-the-JZ4740.patch b/target/linux/xburst/patches-3.8/0005-NAND-Optimize-reading-the-eec-data-for-the-JZ4740.patch new file mode 100644 index 0000000..e65ae6e --- /dev/null +++ b/target/linux/xburst/patches-3.8/0005-NAND-Optimize-reading-the-eec-data-for-the-JZ4740.patch @@ -0,0 +1,53 @@ +From 4f28237a750afd1112b6f1266d36f8b718efe89c Mon Sep 17 00:00:00 2001 +From: Xiangfu Liu <xiangfu@sharism.cc> +Date: Tue, 6 Mar 2012 11:19:26 +0800 +Subject: [PATCH 05/21] NAND-Optimize-reading-the-eec-data-for-the-JZ4740 + +--- + drivers/mtd/nand/nand_base.c | 14 ++++---------- + 1 files changed, 4 insertions(+), 10 deletions(-) + +--- a/drivers/mtd/nand/nand_base.c ++++ b/drivers/mtd/nand/nand_base.c +@@ -1300,8 +1300,8 @@ static int nand_read_page_hwecc_oob_firs + + /* Read the OOB area first */ + if (mtd->writesize > 512) { +- chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page); +- chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize + eccpos[0], page); ++ chip->read_buf(mtd, ecc_code, chip->ecc.total); + chip->cmdfunc(mtd, NAND_CMD_RNDOUT, 0, -1); + } else { + chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); +@@ -1309,9 +1309,6 @@ static int nand_read_page_hwecc_oob_firs + chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page); + } + +- for (i = 0; i < chip->ecc.total; i++) +- ecc_code[i] = chip->oob_poi[eccpos[i]]; +- + for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) { + int stat; + +@@ -1368,8 +1365,8 @@ static int nand_read_subpage_hwecc_oob_f + + /* Read the OOB area first */ + if (mtd->writesize > 512) { +- chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page); +- chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); ++ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize + eccpos[0], page); ++ chip->read_buf(mtd, ecc_code, chip->ecc.total); + chip->cmdfunc(mtd, NAND_CMD_RNDOUT, data_col_addr, -1); + } else { + chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); +@@ -1377,9 +1374,6 @@ static int nand_read_subpage_hwecc_oob_f + chip->cmdfunc(mtd, NAND_CMD_READ0, data_col_addr, page); + } + +- for (i = 0; i < chip->ecc.total; i++) +- ecc_code[i] = chip->oob_poi[eccpos[i]]; +- + p = bufpoi + data_col_addr; + + for (i = eccbytes * start_step; num_steps; num_steps--, i += eccbytes, p += eccsize) { diff --git a/target/linux/xburst/patches-3.8/0007-Add-ili8960-lcd-driver.patch b/target/linux/xburst/patches-3.8/0007-Add-ili8960-lcd-driver.patch new file mode 100644 index 0000000..3bb6881 --- /dev/null +++ b/target/linux/xburst/patches-3.8/0007-Add-ili8960-lcd-driver.patch @@ -0,0 +1,304 @@ +From 2248fb9c47fe7e72c735d6c16aba27bf92e1673a Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen <lars@metafoo.de> +Date: Sun, 1 Aug 2010 21:19:40 +0200 +Subject: [PATCH 07/21] Add ili8960 lcd driver + +--- + drivers/video/backlight/Kconfig | 7 + + drivers/video/backlight/Makefile | 1 + + drivers/video/backlight/ili8960.c | 263 +++++++++++++++++++++++++++++++++++++ + 3 files changed, 271 insertions(+), 0 deletions(-) + create mode 100644 drivers/video/backlight/ili8960.c + +--- a/drivers/video/backlight/Kconfig ++++ b/drivers/video/backlight/Kconfig +@@ -59,6 +59,13 @@ config LCD_LTV350QV + + The LTV350QV panel is present on all ATSTK1000 boards. + ++config LCD_ILI8960 ++ tristate "Ilitek ili8960 LCD driver" ++ depends on LCD_CLASS_DEVICE && SPI ++ default n ++ help ++ Driver for the Ilitek ili8960 LCD controller chip. ++ + config LCD_ILI9320 + tristate "ILI Technology ILI9320 controller support" + depends on SPI +--- a/drivers/video/backlight/Makefile ++++ b/drivers/video/backlight/Makefile +@@ -6,6 +6,7 @@ obj-$(CONFIG_LCD_HP700) += jornada72 + obj-$(CONFIG_LCD_L4F00242T03) += l4f00242t03.o + obj-$(CONFIG_LCD_LMS283GF05) += lms283gf05.o + obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o ++obj-$(CONFIG_LCD_ILI8960) += ili8960.o + obj-$(CONFIG_LCD_ILI9320) += ili9320.o + obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o + obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o +--- /dev/null ++++ b/drivers/video/backlight/ili8960.c +@@ -0,0 +1,263 @@ ++/* ++ * Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de> ++ * Driver for Ilitek ili8960 LCD ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 675 Mass Ave, Cambridge, MA 02139, USA. ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/spi/spi.h> ++#include <linux/lcd.h> ++#include <linux/backlight.h> ++#include <linux/delay.h> ++ ++struct ili8960 { ++ struct spi_device *spi; ++ struct lcd_device *lcd; ++ struct backlight_device *bl; ++ bool enabled; ++ unsigned int brightness; ++}; ++ ++#define ILI8960_REG_BRIGHTNESS 0x03 ++#define ILI8960_REG_POWER 0x05 ++#define ILI8960_REG_CONTRAST 0x0d ++ ++static int ili8960_write_reg(struct spi_device *spi, uint8_t reg, ++ uint8_t data) ++{ ++ uint8_t buf[2]; ++ buf[0] = ((reg & 0x40) << 1) | (reg & 0x3f); ++ buf[1] = data; ++ ++ return spi_write(spi, buf, sizeof(buf)); ++} ++ ++static int ili8960_programm_power(struct spi_device *spi, bool enabled) ++{ ++ int ret; ++ ++ if (enabled) ++ mdelay(20); ++ ++ ret = ili8960_write_reg(spi, ILI8960_REG_POWER, enabled ? 0xc7 : 0xc6); ++ ++ if (!enabled) ++ mdelay(20); ++ ++ return ret; ++} ++ ++static int ili8960_set_power(struct lcd_device *lcd, int power) ++{ ++ struct ili8960 *ili8960 = lcd_get_data(lcd); ++ ++ switch (power) { ++ case FB_BLANK_UNBLANK: ++ ili8960->enabled = true; ++ break; ++ default: ++ ili8960->enabled = false; ++ break; ++ } ++ ++ return ili8960_programm_power(ili8960->spi, ili8960->enabled); ++} ++ ++static int ili8960_get_power(struct lcd_device *lcd) ++{ ++ struct ili8960 *ili8960 = lcd_get_data(lcd); ++ return ili8960->enabled ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; ++} ++ ++static int ili8960_set_contrast(struct lcd_device *lcd, int contrast) ++{ ++ struct ili8960 *ili8960 = lcd_get_data(lcd); ++ ++ return ili8960_write_reg(ili8960->spi, ILI8960_REG_CONTRAST, contrast); ++} ++ ++static int ili8960_set_mode(struct lcd_device *lcd, struct fb_videomode *mode) ++{ ++ if (mode->xres != 320 && mode->yres != 240) ++ return -EINVAL; ++ ++ return 0; ++} ++ ++static int ili8960_set_brightness(struct ili8960 *ili8960, int brightness) ++{ ++ int ret; ++ ++ ret = ili8960_write_reg(ili8960->spi, ILI8960_REG_BRIGHTNESS, brightness); ++ ++ if (ret == 0) ++ ili8960->brightness = brightness; ++ ++ return ret; ++} ++ ++static ssize_t ili8960_show_brightness(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct lcd_device *ld = to_lcd_device(dev); ++ struct ili8960 *ili8960 = lcd_get_data(ld); ++ ++ return sprintf(buf, "%u\n", ili8960->brightness); ++} ++ ++static ssize_t ili8960_store_brightness(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t count) ++{ ++ struct lcd_device *ld = to_lcd_device(dev); ++ struct ili8960 *ili8960 = lcd_get_data(ld); ++ unsigned long brightness; ++ int ret; ++ ++ ret = strict_strtoul(buf, 0, &brightness); ++ if (ret) ++ return ret; ++ ++ if (brightness > 255) ++ return -EINVAL; ++ ++ ili8960_set_brightness(ili8960, brightness); ++ ++ return count; ++} ++ ++ ++static DEVICE_ATTR(brightness, 0644, ili8960_show_brightness, ++ ili8960_store_brightness); ++ ++static struct lcd_ops ili8960_lcd_ops = { ++ .set_power = ili8960_set_power, ++ .get_power = ili8960_get_power, ++ .set_contrast = ili8960_set_contrast, ++ .set_mode = ili8960_set_mode, ++}; ++ ++static int __devinit ili8960_probe(struct spi_device *spi) ++{ ++ int ret; ++ struct ili8960 *ili8960; ++ ++ ili8960 = kmalloc(sizeof(*ili8960), GFP_KERNEL); ++ if (!ili8960) ++ return -ENOMEM; ++ ++ spi->bits_per_word = 8; ++ spi->mode = SPI_MODE_3; ++ ++ ret = spi_setup(spi); ++ if (ret) { ++ dev_err(&spi->dev, "Failed to setup spi\n"); ++ goto err_free_ili8960; ++ } ++ ++ ili8960->spi = spi; ++ ++ ili8960->lcd = lcd_device_register("ili8960-lcd", &spi->dev, ili8960, ++ &ili8960_lcd_ops); ++ ++ if (IS_ERR(ili8960->lcd)) { ++ ret = PTR_ERR(ili8960->lcd); ++ dev_err(&spi->dev, "Failed to register lcd device: %d\n", ret); ++ goto err_free_ili8960; ++ } ++ ++ ili8960->lcd->props.max_contrast = 255; ++ ++ ret = device_create_file(&ili8960->lcd->dev, &dev_attr_brightness); ++ if (ret) ++ goto err_unregister_lcd; ++ ++ ili8960_programm_power(ili8960->spi, true); ++ ili8960->enabled = true; ++ ++ spi_set_drvdata(spi, ili8960); ++ ++ ili8960_write_reg(spi, 0x13, 0x01); ++ ++ return 0; ++err_unregister_lcd: ++ lcd_device_unregister(ili8960->lcd); ++err_free_ili8960: ++ kfree(ili8960); ++ return ret; ++} ++ ++static int __devexit ili8960_remove(struct spi_device *spi) ++{ ++ struct ili8960 *ili8960 = spi_get_drvdata(spi); ++ ++ device_remove_file(&ili8960->lcd->dev, &dev_attr_brightness); ++ lcd_device_unregister(ili8960->lcd); ++ ++ spi_set_drvdata(spi, NULL); ++ kfree(ili8960); ++ return 0; ++} ++ ++#ifdef CONFIG_PM ++ ++static int ili8960_suspend(struct spi_device *spi, pm_message_t state) ++{ ++ struct ili8960 *ili8960 = spi_get_drvdata(spi); ++ ++ if (ili8960->enabled) ++ ili8960_programm_power(ili8960->spi, false); ++ ++ return 0; ++} ++ ++static int ili8960_resume(struct spi_device *spi) ++{ ++ struct ili8960 *ili8960 = spi_get_drvdata(spi); ++ ++ if (ili8960->enabled) ++ ili8960_programm_power(ili8960->spi, true); ++ ++ return 0; ++} ++ ++#else ++#define ili8960_suspend NULL ++#define ili8960_resume NULL ++#endif ++ ++static struct spi_driver ili8960_driver = { ++ .driver = { ++ .name = "ili8960", ++ .owner = THIS_MODULE, ++ }, ++ .probe = ili8960_probe, ++ .remove = __devexit_p(ili8960_remove), ++ .suspend = ili8960_suspend, ++ .resume = ili8960_resume, ++}; ++ ++static int __init ili8960_init(void) ++{ ++ return spi_register_driver(&ili8960_driver); ++} ++module_init(ili8960_init); ++ ++static void __exit ili8960_exit(void) ++{ ++ spi_unregister_driver(&ili8960_driver); ++} ++module_exit(ili8960_exit) ++ ++MODULE_AUTHOR("Lars-Peter Clausen"); ++MODULE_LICENSE("GPL"); ++MODULE_DESCRIPTION("LCD driver for Ilitek ili8960"); ++MODULE_ALIAS("spi:ili8960"); diff --git a/target/linux/xburst/patches-3.8/0008-qi_lb60-Don-t-use-3-wire-spi-mode-for-the-display-fo.patch b/target/linux/xburst/patches-3.8/0008-qi_lb60-Don-t-use-3-wire-spi-mode-for-the-display-fo.patch new file mode 100644 index 0000000..640553d --- /dev/null +++ b/target/linux/xburst/patches-3.8/0008-qi_lb60-Don-t-use-3-wire-spi-mode-for-the-display-fo.patch @@ -0,0 +1,21 @@ +From e5f25e25ed6c0478cbba7a32891b911e3183dad4 Mon Sep 17 00:00:00 2001 +From: Lars-Peter Clausen <lars@metafoo.de> +Date: Wed, 13 Oct 2010 01:17:24 +0200 +Subject: [PATCH 08/21] qi_lb60: Don't use 3-wire spi mode for the display for + now + +The spi_gpio driver does not support 3-wire mode. +--- + arch/mips/jz4740/board-qi_lb60.c | 1 - + 1 files changed, 0 insertions(+), 1 deletions(-) + +--- a/arch/mips/jz4740/board-qi_lb60.c ++++ b/arch/mips/jz4740/board-qi_lb60.c +@@ -311,7 +311,6 @@ static struct spi_board_info qi_lb60_spi + .chip_select = 0, + .bus_num = 1, + .max_speed_hz = 30 * 1000, +- .mode = SPI_3WIRE, + }, + }; + diff --git a/target/linux/xburst/patches-3.8/0009-dev-mem-Add-kernel-config-option-to-omit-this-device.patch b/target/linux/xburst/patches-3.8/0009-dev-mem-Add-kernel-config-option-to-omit-this-device.patch new file mode 100644 index 0000000..4ccaec5 --- /dev/null +++ b/target/linux/xburst/patches-3.8/0009-dev-mem-Add-kernel-config-option-to-omit-this-device.patch @@ -0,0 +1,124 @@ +From 4003b9a2c05f4d0d37535c3dffbf4a7b47d5c36c Mon Sep 17 00:00:00 2001 +From: Maarten ter Huurne <maarten@treewalker.org> +Date: Wed, 8 Sep 2010 02:31:19 +0200 +Subject: [PATCH 09/21] /dev/mem: Add kernel config option to omit this + device. + +Omitting this device prevents software from accessing the hardware directly, which can cause trouble if the kernel accesses the same hardware. +It also saves some space on embedded systems. +--- + arch/x86/Kconfig.debug | 1 + + drivers/char/Kconfig | 10 ++++++++++ + drivers/char/mem.c | 17 +++++++++++++++++ + 3 files changed, 28 insertions(+), 0 deletions(-) + +--- a/arch/x86/Kconfig.debug ++++ b/arch/x86/Kconfig.debug +@@ -7,6 +7,7 @@ source "lib/Kconfig.debug" + + config STRICT_DEVMEM + bool "Filter access to /dev/mem" ++ depends on DEVMEM + ---help--- + If this option is disabled, you allow userspace (root) access to all + of memory, including kernel and userspace memory. Accidental +--- a/drivers/char/Kconfig ++++ b/drivers/char/Kconfig +@@ -6,6 +6,16 @@ menu "Character devices" + + source "drivers/tty/Kconfig" + ++config DEVMEM ++ bool "/dev/mem virtual device support" ++ default y ++ help ++ Say Y here if you want to support the /dev/mem device. ++ Some X server drivers access the video hardware using this device. ++ Accessing hardware directly from user space can be useful in some ++ cases, but it is not without risks. ++ When in doubt, say "N". ++ + config DEVKMEM + bool "/dev/kmem virtual device support" + default y +--- a/drivers/char/mem.c ++++ b/drivers/char/mem.c +@@ -89,6 +89,8 @@ void __weak unxlate_dev_mem_ptr(unsigned + { + } + ++#ifdef CONFIG_DEVMEM ++ + /* + * This funcion reads the *physical* memory. The f_pos points directly to the + * memory location. +@@ -212,6 +214,10 @@ static ssize_t write_mem(struct file *fi + return written; + } + ++#endif ++ ++#if defined(CONFIG_DEVMEM) || defined(CONFIG_DEVKMEM) ++ + int __weak phys_mem_access_prot_allowed(struct file *file, + unsigned long pfn, unsigned long size, pgprot_t *vma_prot) + { +@@ -333,6 +339,8 @@ static int mmap_mem(struct file *file, s + return 0; + } + ++#endif ++ + #ifdef CONFIG_DEVKMEM + static int mmap_kmem(struct file *file, struct vm_area_struct *vma) + { +@@ -696,6 +704,7 @@ static loff_t null_lseek(struct file *fi + return file->f_pos = 0; + } + ++#if defined(CONFIG_DEVMEM) || defined(CONFIG_DEVKMEM) || defined(CONFIG_DEVPORT) + /* + * The memory devices use the full 32/64 bits of the offset, and so we cannot + * check against negative addresses: they are ok. The return value is weird, +@@ -728,11 +737,15 @@ static loff_t memory_lseek(struct file * + mutex_unlock(&file->f_path.dentry->d_inode->i_mutex); + return ret; + } ++#endif + ++#if defined(CONFIG_DEVMEM) || defined(CONFIG_DEVKMEM) || \ ++ defined(CONFIG_DEVPORT) || defined(CONFIG_CRASH_DUMP) + static int open_port(struct inode * inode, struct file * filp) + { + return capable(CAP_SYS_RAWIO) ? 0 : -EPERM; + } ++#endif + + #define zero_lseek null_lseek + #define full_lseek null_lseek +@@ -742,6 +755,7 @@ static int open_port(struct inode * inod + #define open_kmem open_mem + #define open_oldmem open_mem + ++#ifdef CONFIG_DEVMEM + static const struct file_operations mem_fops = { + .llseek = memory_lseek, + .read = read_mem, +@@ -750,6 +764,7 @@ static const struct file_operations mem_ + .open = open_mem, + .get_unmapped_area = get_unmapped_area_mem, + }; ++#endif + + #ifdef CONFIG_DEVKMEM + static const struct file_operations kmem_fops = { +@@ -815,7 +830,9 @@ static const struct memdev { + const struct file_operations *fops; + struct backing_dev_info *dev_info; + } devlist[] = { ++#ifdef CONFIG_DEVMEM + [1] = { "mem", 0, &mem_fops, &directly_mappable_cdev_bdi }, ++#endif + #ifdef CONFIG_DEVKMEM + [2] = { "kmem", 0, &kmem_fops, &directly_mappable_cdev_bdi }, + #endif diff --git a/target/linux/xburst/patches-3.8/0010-cpufreq_stats-Support-runtime-changes-to-frequency-t.patch b/target/linux/xburst/patches-3.8/0010-cpufreq_stats-Support-runtime-changes-to-frequency-t.patch new file mode 100644 index 0000000..f526eab --- /dev/null +++ b/target/linux/xburst/patches-3.8/0010-cpufreq_stats-Support-runtime-changes-to-frequency-t.patch @@ -0,0 +1,304 @@ +From ca40c7542f0cd0e0dfa074bd4ccefc04b8561427 Mon Sep 17 00:00:00 2001 +From: Maarten ter Huurne <maarten@treewalker.org> +Date: Tue, 2 Aug 2011 10:26:09 +0200 +Subject: [PATCH 10/21] cpufreq_stats: Support runtime changes to frequency + table. + +--- + drivers/cpufreq/cpufreq_stats.c | 161 ++++++++++++++++++++------------------- + 1 files changed, 83 insertions(+), 78 deletions(-) + +--- a/drivers/cpufreq/cpufreq_stats.c ++++ b/drivers/cpufreq/cpufreq_stats.c +@@ -20,6 +20,7 @@ + #include <linux/kobject.h> + #include <linux/spinlock.h> + #include <linux/notifier.h> ++#include <linux/string.h> + #include <asm/cputime.h> + + static spinlock_t cpufreq_stats_lock; +@@ -36,7 +37,7 @@ struct cpufreq_stats { + unsigned long long last_time; + unsigned int max_state; + unsigned int state_num; +- unsigned int last_index; ++ int last_index; + u64 *time_in_state; + unsigned int *freq_table; + #ifdef CONFIG_CPU_FREQ_STAT_DETAILS +@@ -59,7 +60,7 @@ static int cpufreq_stats_update(unsigned + cur_time = get_jiffies_64(); + spin_lock(&cpufreq_stats_lock); + stat = per_cpu(cpufreq_stats_table, cpu); +- if (stat->time_in_state) ++ if (stat->time_in_state && stat->last_index != -1) + stat->time_in_state[stat->last_index] += + cur_time - stat->last_time; + stat->last_time = cur_time; +@@ -81,7 +82,7 @@ static ssize_t show_time_in_state(struct + ssize_t len = 0; + int i; + struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu); +- if (!stat) ++ if (!stat || !stat->time_in_state) + return 0; + cpufreq_stats_update(stat->cpu); + for (i = 0; i < stat->state_num; i++) { +@@ -99,7 +100,7 @@ static ssize_t show_trans_table(struct c + int i, j; + + struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu); +- if (!stat) ++ if (!stat || !stat->trans_table) + return 0; + cpufreq_stats_update(stat->cpu); + len += snprintf(buf + len, PAGE_SIZE - len, " From : To\n"); +@@ -158,63 +159,35 @@ static struct attribute_group stats_attr + static int freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq) + { + int index; +- for (index = 0; index < stat->max_state; index++) +- if (stat->freq_table[index] == freq) +- return index; ++ if (stat->freq_table) ++ for (index = 0; index < stat->max_state; index++) ++ if (stat->freq_table[index] == freq) ++ return index; + return -1; + } + +-/* should be called late in the CPU removal sequence so that the stats +- * memory is still available in case someone tries to use it. +- */ + static void cpufreq_stats_free_table(unsigned int cpu) + { + struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, cpu); ++ struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); ++ if (policy && policy->cpu == cpu) ++ sysfs_remove_group(&policy->kobj, &stats_attr_group); + if (stat) { + kfree(stat->time_in_state); + kfree(stat); + } + per_cpu(cpufreq_stats_table, cpu) = NULL; +-} +- +-/* must be called early in the CPU removal sequence (before +- * cpufreq_remove_dev) so that policy is still valid. +- */ +-static void cpufreq_stats_free_sysfs(unsigned int cpu) +-{ +- struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); +- if (policy && policy->cpu == cpu) +- sysfs_remove_group(&policy->kobj, &stats_attr_group); + if (policy) + cpufreq_cpu_put(policy); + } + +-static int cpufreq_stats_create_table(struct cpufreq_policy *policy, ++static int cpufreq_stats_update_table(struct cpufreq_policy *policy, + struct cpufreq_frequency_table *table) + { +- unsigned int i, j, count = 0, ret = 0; +- struct cpufreq_stats *stat; +- struct cpufreq_policy *data; ++ unsigned int i, j, count = 0; + unsigned int alloc_size; + unsigned int cpu = policy->cpu; +- if (per_cpu(cpufreq_stats_table, cpu)) +- return -EBUSY; +- stat = kzalloc(sizeof(struct cpufreq_stats), GFP_KERNEL); +- if ((stat) == NULL) +- return -ENOMEM; +- +- data = cpufreq_cpu_get(cpu); +- if (data == NULL) { +- ret = -EINVAL; +- goto error_get_fail; +- } +- +- ret = sysfs_create_group(&data->kobj, &stats_attr_group); +- if (ret) +- goto error_out; +- +- stat->cpu = cpu; +- per_cpu(cpufreq_stats_table, cpu) = stat; ++ struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, cpu); + + for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) { + unsigned int freq = table[i].frequency; +@@ -223,40 +196,76 @@ static int cpufreq_stats_create_table(st + count++; + } + ++ if (stat->max_state != count) { ++ stat->max_state = count; ++ kfree(stat->time_in_state); ++ stat->time_in_state = NULL; ++ } ++ + alloc_size = count * sizeof(int) + count * sizeof(u64); + + #ifdef CONFIG_CPU_FREQ_STAT_DETAILS + alloc_size += count * count * sizeof(int); + #endif +- stat->max_state = count; +- stat->time_in_state = kzalloc(alloc_size, GFP_KERNEL); +- if (!stat->time_in_state) { +- ret = -ENOMEM; +- goto error_out; +- } +- stat->freq_table = (unsigned int *)(stat->time_in_state + count); +- ++ if (stat->time_in_state) { ++ memset(stat->time_in_state, 0, alloc_size); ++ } else { ++ stat->time_in_state = kzalloc(alloc_size, GFP_KERNEL); ++ if (!stat->time_in_state) ++ return -ENOMEM; ++ stat->freq_table = (unsigned int *)( ++ stat->time_in_state + count); + #ifdef CONFIG_CPU_FREQ_STAT_DETAILS +- stat->trans_table = stat->freq_table + count; ++ stat->trans_table = stat->freq_table + count; + #endif ++ } ++ + j = 0; +- for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) { +- unsigned int freq = table[i].frequency; +- if (freq == CPUFREQ_ENTRY_INVALID) +- continue; +- if (freq_table_get_index(stat, freq) == -1) +- stat->freq_table[j++] = freq; ++ if (stat->freq_table) { ++ for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) { ++ unsigned int freq = table[i].frequency; ++ if (freq == CPUFREQ_ENTRY_INVALID) ++ continue; ++ if (freq_table_get_index(stat, freq) == -1) ++ stat->freq_table[j++] = freq; ++ } + } ++ + stat->state_num = j; + spin_lock(&cpufreq_stats_lock); + stat->last_time = get_jiffies_64(); + stat->last_index = freq_table_get_index(stat, policy->cur); + spin_unlock(&cpufreq_stats_lock); ++ return 0; ++} ++ ++static int cpufreq_stats_create_table(struct cpufreq_policy *policy, ++ struct cpufreq_frequency_table *table) ++{ ++ unsigned int ret = 0; ++ struct cpufreq_stats *stat; ++ struct cpufreq_policy *data; ++ unsigned int cpu = policy->cpu; ++ ++ stat = kzalloc(sizeof(struct cpufreq_stats), GFP_KERNEL); ++ if ((stat) == NULL) ++ return -ENOMEM; ++ ++ data = cpufreq_cpu_get(cpu); ++ if (data == NULL) { ++ ret = -EINVAL; ++ goto error_out; ++ } ++ ret = sysfs_create_group(&data->kobj, &stats_attr_group); + cpufreq_cpu_put(data); ++ if (ret) ++ goto error_out; ++ ++ stat->cpu = cpu; ++ per_cpu(cpufreq_stats_table, cpu) = stat; ++ + return 0; + error_out: +- cpufreq_cpu_put(data); +-error_get_fail: + kfree(stat); + per_cpu(cpufreq_stats_table, cpu) = NULL; + return ret; +@@ -274,10 +283,12 @@ static int cpufreq_stat_notifier_policy( + table = cpufreq_frequency_get_table(cpu); + if (!table) + return 0; +- ret = cpufreq_stats_create_table(policy, table); +- if (ret) +- return ret; +- return 0; ++ if (!per_cpu(cpufreq_stats_table, cpu)) { ++ ret = cpufreq_stats_create_table(policy, table); ++ if (ret) ++ return ret; ++ } ++ return cpufreq_stats_update_table(policy, table); + } + + static int cpufreq_stat_notifier_trans(struct notifier_block *nb, +@@ -297,21 +308,23 @@ static int cpufreq_stat_notifier_trans(s + old_index = stat->last_index; + new_index = freq_table_get_index(stat, freq->new); + +- /* We can't do stat->time_in_state[-1]= .. */ +- if (old_index == -1 || new_index == -1) +- return 0; +- + cpufreq_stats_update(freq->cpu); +- + if (old_index == new_index) + return 0; + ++ if (new_index == -1) ++ return 0; ++ + spin_lock(&cpufreq_stats_lock); + stat->last_index = new_index; ++ if (old_index != -1) { + #ifdef CONFIG_CPU_FREQ_STAT_DETAILS +- stat->trans_table[old_index * stat->max_state + new_index]++; ++ if (stat->trans_table) ++ stat->trans_table[old_index * stat->max_state + ++ new_index]++; + #endif +- stat->total_trans++; ++ stat->total_trans++; ++ } + spin_unlock(&cpufreq_stats_lock); + return 0; + } +@@ -327,10 +340,6 @@ static int __cpuinit cpufreq_stat_cpu_ca + case CPU_ONLINE_FROZEN: + cpufreq_update_policy(cpu); + break; +- case CPU_DOWN_PREPARE: +- case CPU_DOWN_PREPARE_FROZEN: +- cpufreq_stats_free_sysfs(cpu); +- break; + case CPU_DEAD: + case CPU_DEAD_FROZEN: + cpufreq_stats_free_table(cpu); +@@ -339,10 +348,9 @@ static int __cpuinit cpufreq_stat_cpu_ca + return NOTIFY_OK; + } + +-/* priority=1 so this will get called before cpufreq_remove_dev */ +-static struct notifier_block cpufreq_stat_cpu_notifier __refdata = { ++static struct notifier_block cpufreq_stat_cpu_notifier __refdata = ++{ + .notifier_call = cpufreq_stat_cpu_callback, +- .priority = 1, + }; + + static struct notifier_block notifier_policy_block = { +@@ -392,7 +400,6 @@ static void __exit cpufreq_stats_exit(vo + unregister_hotcpu_notifier(&cpufreq_stat_cpu_notifier); + for_each_online_cpu(cpu) { + cpufreq_stats_free_table(cpu); +- cpufreq_stats_free_sysfs(cpu); + } + } + diff --git a/target/linux/xburst/patches-3.8/0011-MIPS-JZ4740-Added-setting-of-PLL-rate-and-main-divid.patch b/target/linux/xburst/patches-3.8/0011-MIPS-JZ4740-Added-setting-of-PLL-rate-and-main-divid.patch new file mode 100644 index 0000000..01c211b --- /dev/null +++ b/target/linux/xburst/patches-3.8/0011-MIPS-JZ4740-Added-setting-of-PLL-rate-and-main-divid.patch @@ -0,0 +1,351 @@ +From 27ff621cd9a5347efda4be502abbef13a99146ce Mon Sep 17 00:00:00 2001 +From: Maarten ter Huurne <maarten@treewalker.org> +Date: Sun, 29 Aug 2010 08:11:00 +0200 +Subject: [PATCH 11/21] MIPS: JZ4740: Added setting of PLL rate and main + dividers. + +This functionality makes a cpufreq driver possible. +Squashed version of the development done in the jz-2.6.39 branch. +--- + arch/mips/jz4740/clock.c | 230 ++++++++++++++++++++++++++++++++++++++++++++-- + arch/mips/jz4740/clock.h | 4 + + 2 files changed, 224 insertions(+), 10 deletions(-) + +--- a/arch/mips/jz4740/clock.c ++++ b/arch/mips/jz4740/clock.c +@@ -1,5 +1,8 @@ + /* ++ * Copyright (c) 2006-2007, Ingenic Semiconductor Inc. + * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de> ++ * Copyright (c) 2010, Ulrich Hecht <ulrich.hecht@gmail.com> ++ * Copyright (c) 2010, Maarten ter Huurne <maarten@treewalker.org> + * JZ4740 SoC clock support + * + * This program is free software; you can redistribute it and/or modify it +@@ -41,16 +44,20 @@ + #define JZ_CLOCK_CTRL_I2S_SRC_PLL BIT(31) + #define JZ_CLOCK_CTRL_KO_ENABLE BIT(30) + #define JZ_CLOCK_CTRL_UDC_SRC_PLL BIT(29) +-#define JZ_CLOCK_CTRL_UDIV_MASK 0x1f800000 + #define JZ_CLOCK_CTRL_CHANGE_ENABLE BIT(22) + #define JZ_CLOCK_CTRL_PLL_HALF BIT(21) +-#define JZ_CLOCK_CTRL_LDIV_MASK 0x001f0000 + #define JZ_CLOCK_CTRL_UDIV_OFFSET 23 + #define JZ_CLOCK_CTRL_LDIV_OFFSET 16 + #define JZ_CLOCK_CTRL_MDIV_OFFSET 12 + #define JZ_CLOCK_CTRL_PDIV_OFFSET 8 + #define JZ_CLOCK_CTRL_HDIV_OFFSET 4 + #define JZ_CLOCK_CTRL_CDIV_OFFSET 0 ++#define JZ_CLOCK_CTRL_UDIV_MASK (0x3f << JZ_CLOCK_CTRL_UDIV_OFFSET) ++#define JZ_CLOCK_CTRL_LDIV_MASK (0x1f << JZ_CLOCK_CTRL_LDIV_OFFSET) ++#define JZ_CLOCK_CTRL_MDIV_MASK (0x0f << JZ_CLOCK_CTRL_MDIV_OFFSET) ++#define JZ_CLOCK_CTRL_PDIV_MASK (0x0f << JZ_CLOCK_CTRL_PDIV_OFFSET) ++#define JZ_CLOCK_CTRL_HDIV_MASK (0x0f << JZ_CLOCK_CTRL_HDIV_OFFSET) ++#define JZ_CLOCK_CTRL_CDIV_MASK (0x0f << JZ_CLOCK_CTRL_CDIV_OFFSET) + + #define JZ_CLOCK_GATE_UART0 BIT(0) + #define JZ_CLOCK_GATE_TCU BIT(1) +@@ -90,6 +97,7 @@ + #define JZ_CLOCK_PLL_M_OFFSET 23 + #define JZ_CLOCK_PLL_N_OFFSET 18 + #define JZ_CLOCK_PLL_OD_OFFSET 16 ++#define JZ_CLOCK_PLL_STABILIZE_OFFSET 0 + + #define JZ_CLOCK_LOW_POWER_MODE_DOZE BIT(2) + #define JZ_CLOCK_LOW_POWER_MODE_SLEEP BIT(0) +@@ -97,10 +105,15 @@ + #define JZ_CLOCK_SLEEP_CTRL_SUSPEND_UHC BIT(7) + #define JZ_CLOCK_SLEEP_CTRL_ENABLE_UDC BIT(6) + ++#define JZ_REG_EMC_RTCNT 0x88 ++#define JZ_REG_EMC_RTCOR 0x8C ++ + static void __iomem *jz_clock_base; + static spinlock_t jz_clock_lock; + static LIST_HEAD(jz_clocks); + ++static void __iomem *jz_emc_base; ++ + struct main_clk { + struct clk clk; + uint32_t div_offset; +@@ -204,25 +217,88 @@ static int jz_clk_ko_is_enabled(struct c + return !!(jz_clk_reg_read(JZ_REG_CLOCK_CTRL) & JZ_CLOCK_CTRL_KO_ENABLE); + } + ++static struct static_clk jz_clk_ext; ++ ++static unsigned long jz_clk_pll_calc_rate( ++ unsigned int in_div, unsigned int feedback, unsigned int out_div) ++{ ++ return ((jz_clk_ext.rate / in_div) * feedback) / out_div; ++} ++ ++static void jz_clk_pll_calc_dividers(unsigned long rate, ++ unsigned int *in_div, unsigned int *feedback, unsigned int *out_div) ++{ ++ unsigned int target; ++ ++ /* The frequency after the input divider must be between 1 and 15 MHz. ++ The highest divider yields the best resolution. */ ++ *in_div = jz_clk_ext.rate / 1000000; ++ if (*in_div >= 34) ++ *in_div = 33; ++ ++ /* The frequency before the output divider must be between 100 and ++ 500 MHz. The lowest target rate is more energy efficient. */ ++ if (rate < 25000000) { ++ *out_div = 4; ++ target = 25000000 * 4; ++ } else if (rate <= 50000000) { ++ *out_div = 4; ++ target = rate * 4; ++ } else if (rate <= 100000000) { ++ *out_div = 2; ++ target = rate * 2; ++ } else if (rate <= 500000000) { ++ *out_div = 1; ++ target = rate; ++ } else { ++ *out_div = 1; ++ target = 500000000; ++ } ++ ++ /* Compute the feedback divider. ++ Since the divided input is at least 1 MHz and the target frequency ++ at most 500 MHz, the feedback will be at most 500 and will therefore ++ always fit in the 9-bit register. ++ Similarly, the divided input is at most 15 MHz and the target ++ frequency at least 100 MHz, so the feedback will be at least 6 ++ where the minimum supported value is 2. */ ++ *feedback = ((target / 1000) * *in_div) / (jz_clk_ext.rate / 1000); ++} ++ ++static unsigned long jz_clk_pll_round_rate(struct clk *clk, unsigned long rate) ++{ ++ unsigned int in_div, feedback, out_div; ++ /* The PLL frequency must be a multiple of 24 MHz, since the LCD pixel ++ * clock must be exactly 12 MHz for the TV-out to work. ++ * TODO: A multiple of 12 MHz for the PLL would work if the PLL would ++ * not be divided by 2 before being passed to the set of derived ++ * clocks that includes the LCD pixel clock. ++ * TODO: Systemwide decisions like this should be made by the board ++ * support code, so add some kind of hook for that. ++ */ ++ unsigned long rate24 = (rate / 24000000) * 24000000; ++ ++ jz_clk_pll_calc_dividers(rate24, &in_div, &feedback, &out_div); ++ return jz_clk_pll_calc_rate(in_div, feedback, out_div); ++} ++ + static const int pllno[] = {1, 2, 2, 4}; + + static unsigned long jz_clk_pll_get_rate(struct clk *clk) + { + uint32_t val; +- int m; +- int n; +- int od; ++ unsigned int in_div, feedback, out_div; + + val = jz_clk_reg_read(JZ_REG_CLOCK_PLL); + + if (val & JZ_CLOCK_PLL_BYPASS) + return clk_get_rate(clk->parent); + +- m = ((val >> 23) & 0x1ff) + 2; +- n = ((val >> 18) & 0x1f) + 2; +- od = (val >> 16) & 0x3; ++ feedback = ((val >> 23) & 0x1ff) + 2; ++ in_div = ((val >> 18) & 0x1f) + 2; ++ out_div = pllno[(val >> 16) & 0x3]; + +- return ((clk_get_rate(clk->parent) / n) * m) / pllno[od]; ++ return jz_clk_pll_calc_rate(in_div, feedback, out_div); + } + + static unsigned long jz_clk_pll_half_get_rate(struct clk *clk) +@@ -235,7 +311,77 @@ static unsigned long jz_clk_pll_half_get + return jz_clk_pll_get_rate(clk->parent) >> 1; + } + +-static const int jz_clk_main_divs[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32}; ++#define SDRAM_TREF 15625 /* Refresh period: 4096 refresh cycles/64ms */ ++ ++static void sdram_set_pll(unsigned int pllin) ++{ ++ unsigned int ns, sdramclock; ++ ++ ns = 1000000000 / pllin; ++ sdramclock = (SDRAM_TREF / ns) / 64 + 1; ++ if (sdramclock > 0xff) sdramclock = 0xff; ++ /* Set refresh registers */ ++ writew(sdramclock, jz_emc_base + JZ_REG_EMC_RTCOR); ++ writew(sdramclock, jz_emc_base + JZ_REG_EMC_RTCNT); ++} ++ ++static int jz_clk_pll_set_rate(struct clk *clk, unsigned long rate) ++{ ++ unsigned int ctrl, plcr1; ++ unsigned int feedback, in_div, out_div, pllout, pllout2; ++ ++ jz_clk_pll_calc_dividers(rate, &in_div, &feedback, &out_div); ++ ++ ctrl = jz_clk_reg_read(JZ_REG_CLOCK_CTRL); ++ pllout = jz_clk_pll_calc_rate(in_div, feedback, out_div); ++ pllout2 = (ctrl & JZ_CLOCK_CTRL_PLL_HALF) ? pllout : (pllout / 2); ++ ++ /* Init UHC clock */ ++ writel(pllout2 / 48000000 - 1, jz_clock_base + JZ_REG_CLOCK_UHC); ++ ++ plcr1 = ((feedback - 2) << JZ_CLOCK_PLL_M_OFFSET) | ++ ((in_div - 2) << JZ_CLOCK_PLL_N_OFFSET) | ++ ((out_div - 1) << JZ_CLOCK_PLL_OD_OFFSET) | ++ (0x20 << JZ_CLOCK_PLL_STABILIZE_OFFSET) | ++ JZ_CLOCK_PLL_ENABLED; ++ ++ sdram_set_pll(pllout); ++ ++ /* LCD pixclock */ ++ writel(pllout2 / 12000000 - 1, jz_clock_base + JZ_REG_CLOCK_LCD); ++ ++ /* configure PLL */ ++ __asm__ __volatile__( ++ ".set noreorder\n\t" ++ ".align 5\n" ++ "sw %1,0(%0)\n\t" ++ "nop\n\t" ++ "nop\n\t" ++ "nop\n\t" ++ "nop\n\t" ++ "nop\n\t" ++ "nop\n\t" ++ "nop\n\t" ++ ".set reorder\n\t" ++ : ++ : "r" (jz_clock_base + JZ_REG_CLOCK_PLL), "r" (plcr1)); ++ ++ /* MtH: For some reason the MSC will have problems if this flag is not ++ restored, even though the MSC is supposedly the only divider ++ that is not affected by this flag. */ ++ jz_clk_reg_set_bits(JZ_REG_CLOCK_CTRL, JZ_CLOCK_CTRL_CHANGE_ENABLE); ++ ++ return 0; ++} ++ ++static const unsigned int jz_clk_main_divs[] = { ++ 1, 2, 3, 4, 6, 8, 12, 16, 24, 32 ++}; ++static const unsigned int jz_clk_main_divs_inv[] = { ++ -1, 0, 1, 2, 3, -1, 4, -1, 5, -1, -1, -1, 6, -1, -1, -1, ++ 7, -1, -1, -1, -1, -1, -1, -1, 8, -1, -1, -1, -1, -1, -1, -1, ++ 9 ++}; + + static unsigned long jz_clk_main_round_rate(struct clk *clk, unsigned long rate) + { +@@ -290,6 +436,64 @@ static int jz_clk_main_set_rate(struct c + return 0; + } + ++static struct main_clk jz_clk_cpu; ++ ++int clk_main_set_dividers(bool immediate, unsigned int cdiv, unsigned int hdiv, ++ unsigned int mdiv, unsigned int pdiv) ++{ ++ unsigned int cdiv_enc, hdiv_enc, mdiv_enc, pdiv_enc; ++ unsigned int ctrl; ++ unsigned int tmp, wait; ++ ++ if (cdiv >= ARRAY_SIZE(jz_clk_main_divs_inv) || ++ hdiv >= ARRAY_SIZE(jz_clk_main_divs_inv) || ++ mdiv >= ARRAY_SIZE(jz_clk_main_divs_inv) || ++ pdiv >= ARRAY_SIZE(jz_clk_main_divs_inv)) ++ return -EINVAL; ++ cdiv_enc = jz_clk_main_divs_inv[cdiv]; ++ hdiv_enc = jz_clk_main_divs_inv[hdiv]; ++ mdiv_enc = jz_clk_main_divs_inv[mdiv]; ++ pdiv_enc = jz_clk_main_divs_inv[pdiv]; ++ if (cdiv_enc == (unsigned int)-1 || ++ hdiv_enc == (unsigned int)-1 || ++ mdiv_enc == (unsigned int)-1 || ++ pdiv_enc == (unsigned int)-1) ++ return -EINVAL; ++ ++ ctrl = jz_clk_reg_read(JZ_REG_CLOCK_CTRL); ++ ctrl &= ~(JZ_CLOCK_CTRL_CHANGE_ENABLE | ++ JZ_CLOCK_CTRL_CDIV_MASK | JZ_CLOCK_CTRL_HDIV_MASK | ++ JZ_CLOCK_CTRL_MDIV_MASK | JZ_CLOCK_CTRL_PDIV_MASK); ++ if (immediate) ctrl |= JZ_CLOCK_CTRL_CHANGE_ENABLE; ++ ctrl |= (cdiv_enc << JZ_CLOCK_CTRL_CDIV_OFFSET) | ++ (hdiv_enc << JZ_CLOCK_CTRL_HDIV_OFFSET) | ++ (mdiv_enc << JZ_CLOCK_CTRL_MDIV_OFFSET) | ++ (pdiv_enc << JZ_CLOCK_CTRL_PDIV_OFFSET); ++ ++ /* set dividers */ ++ /* delay loops lifted from the old Ingenic cpufreq driver */ ++ wait = ((clk_get_rate(&jz_clk_cpu.clk) / 1000000) * 500) / 1000; ++ __asm__ __volatile__( ++ ".set noreorder\n\t" ++ ".align 5\n" ++ "sw %2,0(%1)\n\t" ++ "li %0,0\n\t" ++ "1:\n\t" ++ "bne %0,%3,1b\n\t" ++ "addi %0, 1\n\t" ++ "nop\n\t" ++ "nop\n\t" ++ "nop\n\t" ++ "nop\n\t" ++ ".set reorder\n\t" ++ : "=r" (tmp) ++ : "r" (jz_clock_base + JZ_REG_CLOCK_CTRL), "r" (ctrl), ++ "r" (wait)); ++ ++ return 0; ++} ++EXPORT_SYMBOL_GPL(clk_main_set_dividers); ++ + static struct clk_ops jz_clk_static_ops = { + .get_rate = jz_clk_static_get_rate, + .enable = jz_clk_enable_gating, +@@ -307,6 +511,8 @@ static struct static_clk jz_clk_ext = { + + static struct clk_ops jz_clk_pll_ops = { + .get_rate = jz_clk_pll_get_rate, ++ .set_rate = jz_clk_pll_set_rate, ++ .round_rate = jz_clk_pll_round_rate, + }; + + static struct clk jz_clk_pll = { +@@ -897,6 +1103,10 @@ static int jz4740_clock_init(void) + if (!jz_clock_base) + return -EBUSY; + ++ jz_emc_base = ioremap(JZ4740_EMC_BASE_ADDR, 0x100); ++ if (!jz_emc_base) ++ return -EBUSY; ++ + spin_lock_init(&jz_clock_lock); + + jz_clk_ext.rate = jz4740_clock_bdata.ext_rate; +--- a/arch/mips/jz4740/clock.h ++++ b/arch/mips/jz4740/clock.h +@@ -17,6 +17,7 @@ + #define __MIPS_JZ4740_CLOCK_H__ + + #include <linux/list.h> ++#include <linux/types.h> + + struct jz4740_clock_board_data { + unsigned long ext_rate; +@@ -63,6 +64,9 @@ struct clk { + + int clk_is_enabled(struct clk *clk); + ++int clk_main_set_dividers(bool immediate, unsigned int cdiv, unsigned int hdiv, ++ unsigned int mdiv, unsigned int pdiv); ++ + #ifdef CONFIG_DEBUG_FS + void jz4740_clock_debugfs_init(void); + void jz4740_clock_debugfs_add_clk(struct clk *clk); diff --git a/target/linux/xburst/patches-3.8/0012-MIPS-JZ4740-Add-cpufreq-support.patch b/target/linux/xburst/patches-3.8/0012-MIPS-JZ4740-Add-cpufreq-support.patch new file mode 100644 index 0000000..54883ea --- /dev/null +++ b/target/linux/xburst/patches-3.8/0012-MIPS-JZ4740-Add-cpufreq-support.patch @@ -0,0 +1,296 @@ +From d0f0d5739a31c12d349980ed05a670fa1e84696d Mon Sep 17 00:00:00 2001 +From: Maarten ter Huurne <maarten@treewalker.org> +Date: Wed, 16 Mar 2011 03:16:04 +0100 +Subject: [PATCH 12/21] MIPS: JZ4740: Add cpufreq support. + +This is a squashed version of Uli's driver that was further developed in the opendingux-kernel repository. +--- + arch/mips/Kconfig | 1 + + arch/mips/jz4740/Makefile | 1 + + arch/mips/jz4740/cpufreq.c | 226 ++++++++++++++++++++++++++++++++++++++ + arch/mips/kernel/cpufreq/Kconfig | 13 ++- + 4 files changed, 240 insertions(+), 1 deletions(-) + create mode 100644 arch/mips/jz4740/cpufreq.c + +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -228,6 +228,7 @@ config MACH_JZ4740 + select HAVE_PWM + select HAVE_CLK + select GENERIC_IRQ_CHIP ++ select CPU_SUPPORTS_CPUFREQ + + config LANTIQ + bool "Lantiq based platforms" +--- a/arch/mips/jz4740/Makefile ++++ b/arch/mips/jz4740/Makefile +@@ -16,3 +16,4 @@ obj-$(CONFIG_JZ4740_QI_LB60) += board-qi + # PM support + + obj-$(CONFIG_PM) += pm.o ++obj-$(CONFIG_CPU_FREQ_JZ) += cpufreq.o +--- /dev/null ++++ b/arch/mips/jz4740/cpufreq.c +@@ -0,0 +1,226 @@ ++/* ++ * linux/arch/mips/jz4740/cpufreq.c ++ * ++ * cpufreq driver for JZ4740 ++ * ++ * Copyright (c) 2010 Ulrich Hecht <ulrich.hecht@gmail.com> ++ * Copyright (c) 2010 Maarten ter Huurne <maarten@treewalker.org> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/err.h> ++ ++#include <linux/cpufreq.h> ++ ++#include <linux/clk.h> ++#include <asm/mach-jz4740/base.h> ++ ++#include "clock.h" ++ ++#define DEBUG_CPUFREQ ++ ++#ifdef DEBUG_CPUFREQ ++#define dprintk(X...) printk(KERN_INFO X) ++#else ++#define dprintk(X...) do { } while(0) ++#endif ++ ++#define HCLK_MIN 30000 ++/* TODO: The maximum MCLK most likely depends on the SDRAM chips used, ++ so it is board-specific. */ ++#define MCLK_MAX 140000 ++ ++/* Same as jz_clk_main_divs, but with 24 and 32 removed because the hardware ++ spec states those dividers must not be used for CCLK or HCLK. */ ++static const unsigned int jz4740_freq_cpu_divs[] = {1, 2, 3, 4, 6, 8, 12, 16}; ++ ++struct jz4740_freq_percpu_info { ++ unsigned int pll_rate; ++ struct cpufreq_frequency_table table[ ++ ARRAY_SIZE(jz4740_freq_cpu_divs) + 1]; ++}; ++ ++static struct clk *pll; ++static struct clk *cclk; ++ ++static struct jz4740_freq_percpu_info jz4740_freq_info; ++ ++static struct cpufreq_driver cpufreq_jz4740_driver; ++ ++static void jz4740_freq_fill_table(struct cpufreq_policy *policy, ++ unsigned int pll_rate) ++{ ++ struct cpufreq_frequency_table *table = &jz4740_freq_info.table[0]; ++ int i; ++ ++#ifdef CONFIG_CPU_FREQ_STAT_DETAILS ++ /* for showing /sys/devices/system/cpu/cpuX/cpufreq/stats/ */ ++ static bool init = false; ++ if (init) ++ cpufreq_frequency_table_put_attr(policy->cpu); ++ else ++ init = true; ++#endif ++ ++ jz4740_freq_info.pll_rate = pll_rate; ++ ++ for (i = 0; i < ARRAY_SIZE(jz4740_freq_cpu_divs); i++) { ++ unsigned int freq = pll_rate / jz4740_freq_cpu_divs[i]; ++ if (freq < HCLK_MIN) break; ++ table[i].index = i; ++ table[i].frequency = freq; ++ } ++ table[i].index = i; ++ table[i].frequency = CPUFREQ_TABLE_END; ++ ++ policy->min = table[i - 1].frequency; ++ policy->max = table[0].frequency; ++ ++#ifdef CONFIG_CPU_FREQ_STAT_DETAILS ++ cpufreq_frequency_table_get_attr(table, policy->cpu); ++#endif ++} ++ ++static unsigned int jz4740_freq_get(unsigned int cpu) ++{ ++ return clk_get_rate(cclk) / 1000; ++} ++ ++static int jz4740_freq_verify(struct cpufreq_policy *policy) ++{ ++ unsigned int new_pll; ++ ++ cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, ++ policy->cpuinfo.max_freq); ++ ++ new_pll = clk_round_rate(pll, policy->max * 1000) / 1000; ++ if (jz4740_freq_info.pll_rate != new_pll) ++ jz4740_freq_fill_table(policy, new_pll); ++ ++ return 0; ++} ++ ++static int jz4740_freq_target(struct cpufreq_policy *policy, ++ unsigned int target_freq, ++ unsigned int relation) ++{ ++ struct cpufreq_frequency_table *table = &jz4740_freq_info.table[0]; ++ struct cpufreq_freqs freqs; ++ unsigned int new_index = 0; ++ unsigned int old_pll = clk_get_rate(pll) / 1000; ++ unsigned int new_pll = jz4740_freq_info.pll_rate; ++ int ret = 0; ++ ++ if (cpufreq_frequency_table_target(policy, table, ++ target_freq, relation, &new_index)) ++ return -EINVAL; ++ freqs = (struct cpufreq_freqs) { ++ .old = jz4740_freq_get(policy->cpu), ++ .new = table[new_index].frequency, ++ .cpu = policy->cpu, ++ .flags = cpufreq_jz4740_driver.flags, ++ }; ++ if (freqs.new != freqs.old || new_pll != old_pll) { ++ unsigned int cdiv, hdiv, mdiv, pdiv; ++ cdiv = jz4740_freq_cpu_divs[new_index]; ++ hdiv = (cdiv == 3 || cdiv == 6) ? cdiv * 2 : cdiv * 3; ++ while (new_pll < HCLK_MIN * hdiv) ++ hdiv -= cdiv; ++ mdiv = hdiv; ++ if (new_pll > MCLK_MAX * mdiv) { ++ /* 4,4 performs better than 3,6 */ ++ if (new_pll > MCLK_MAX * 4) ++ mdiv *= 2; ++ else ++ hdiv = mdiv = cdiv * 4; ++ } ++ pdiv = mdiv; ++ dprintk(KERN_INFO "%s: cclk %p, setting from %d to %d, " ++ "dividers %d, %d, %d, %d\n", ++ __FUNCTION__, cclk, freqs.old, freqs.new, ++ cdiv, hdiv, mdiv, pdiv); ++ cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); ++ ret = clk_main_set_dividers(new_pll == old_pll, ++ cdiv, hdiv, mdiv, pdiv); ++ if (ret) { ++ dprintk(KERN_INFO "failed to set dividers\n"); ++ } else if (new_pll != old_pll) { ++ dprintk(KERN_INFO "%s: pll %p, setting from %d to %d\n", ++ __FUNCTION__, pll, old_pll, new_pll); ++ ret = clk_set_rate(pll, new_pll * 1000); ++ } ++ cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); ++ } ++ ++ return ret; ++} ++ ++static int jz4740_cpufreq_driver_init(struct cpufreq_policy *policy) ++{ ++ int ret; ++ ++ dprintk(KERN_INFO "Jz4740 cpufreq driver\n"); ++ ++ if (policy->cpu != 0) ++ return -EINVAL; ++ ++ pll = clk_get(NULL, "pll"); ++ if (IS_ERR(pll)) { ++ ret = PTR_ERR(pll); ++ goto err_exit; ++ } ++ ++ cclk = clk_get(NULL, "cclk"); ++ if (IS_ERR(cclk)) { ++ ret = PTR_ERR(cclk); ++ goto err_clk_put_pll; ++ } ++ ++ policy->cpuinfo.min_freq = HCLK_MIN; ++ policy->cpuinfo.max_freq = 500000; ++ policy->cpuinfo.transition_latency = 100000; /* in nanoseconds */ ++ policy->cur = jz4740_freq_get(policy->cpu); ++ policy->governor = CPUFREQ_DEFAULT_GOVERNOR; ++ /* min and max are set by jz4740_freq_fill_table() */ ++ ++ jz4740_freq_fill_table(policy, clk_get_rate(pll) / 1000 /* in kHz */); ++ ++ return 0; ++ ++err_clk_put_pll: ++ clk_put(pll); ++err_exit: ++ return ret; ++} ++ ++static struct cpufreq_driver cpufreq_jz4740_driver = { ++ .init = jz4740_cpufreq_driver_init, ++ .verify = jz4740_freq_verify, ++ .target = jz4740_freq_target, ++ .get = jz4740_freq_get, ++ .name = "jz4740", ++}; ++ ++static int __init jz4740_cpufreq_init(void) ++{ ++ return cpufreq_register_driver(&cpufreq_jz4740_driver); ++} ++ ++static void __exit jz4740_cpufreq_exit(void) ++{ ++ cpufreq_unregister_driver(&cpufreq_jz4740_driver); ++} ++ ++module_init(jz4740_cpufreq_init); ++module_exit(jz4740_cpufreq_exit); ++ ++MODULE_AUTHOR("Ulrich Hecht <ulrich.hecht@gmail.com>, " ++ "Maarten ter Huurne <maarten@treewalker.org>"); ++MODULE_DESCRIPTION("cpufreq driver for Jz4740"); ++MODULE_LICENSE("GPL"); +--- a/arch/mips/kernel/cpufreq/Kconfig ++++ b/arch/mips/kernel/cpufreq/Kconfig +@@ -8,7 +8,7 @@ config MIPS_EXTERNAL_TIMER + config MIPS_CPUFREQ + bool + default y +- depends on CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER ++ depends on CPU_SUPPORTS_CPUFREQ + + if MIPS_CPUFREQ + +@@ -24,6 +24,7 @@ config LOONGSON2_CPUFREQ + tristate "Loongson2 CPUFreq Driver" + select CPU_FREQ_TABLE + depends on MIPS_CPUFREQ ++ depends on MIPS_EXTERNAL_TIMER + help + This option adds a CPUFreq driver for loongson processors which + support software configurable cpu frequency. +@@ -34,6 +35,16 @@ config LOONGSON2_CPUFREQ + + If in doubt, say N. + ++config CPU_FREQ_JZ ++ tristate "CPUfreq driver for JZ CPUs" ++ select CPU_FREQ_TABLE ++ depends on MACH_JZ4740 ++ default n ++ help ++ This enables the CPUfreq driver for JZ CPUs. ++ ++ If in doubt, say N. ++ + endif # CPU_FREQ + + endmenu diff --git a/target/linux/xburst/patches-3.8/0013-MMC-JZ4740-Added-support-for-CPU-frequency-changing.patch b/target/linux/xburst/patches-3.8/0013-MMC-JZ4740-Added-support-for-CPU-frequency-changing.patch new file mode 100644 index 0000000..1fb41fa --- /dev/null +++ b/target/linux/xburst/patches-3.8/0013-MMC-JZ4740-Added-support-for-CPU-frequency-changing.patch @@ -0,0 +1,129 @@ +From b95144c1b702f98c7902c75beb83f323701eb7c5 Mon Sep 17 00:00:00 2001 +From: Maarten ter Huurne <maarten@treewalker.org> +Date: Sun, 19 Jun 2011 10:57:18 +0200 +Subject: [PATCH 13/21] MMC: JZ4740: Added support for CPU frequency changing. + +The MSC device clock is stopped before the frequency change. +After the change a new divider is computed and the clock is restarted. +Also the frequency change is postponed if an I/O operation is in progress. +--- + drivers/mmc/host/jz4740_mmc.c | 69 +++++++++++++++++++++++++++++++++++++++- + 1 files changed, 67 insertions(+), 2 deletions(-) + +--- a/drivers/mmc/host/jz4740_mmc.c ++++ b/drivers/mmc/host/jz4740_mmc.c +@@ -23,6 +23,7 @@ + #include <linux/delay.h> + #include <linux/scatterlist.h> + #include <linux/clk.h> ++#include <linux/cpufreq.h> + + #include <linux/bitops.h> + #include <linux/gpio.h> +@@ -685,6 +686,60 @@ static void jz4740_mmc_enable_sdio_irq(s + jz4740_mmc_set_irq_enabled(host, JZ_MMC_IRQ_SDIO, enable); + } + ++#ifdef CONFIG_CPU_FREQ ++ ++static struct jz4740_mmc_host *cpufreq_host; ++ ++static int jz4740_mmc_cpufreq_transition(struct notifier_block *nb, ++ unsigned long val, void *data) ++{ ++ /* TODO: We only have to take action when the PLL freq changes: ++ the main dividers have no influence on the MSC device clock. */ ++ ++ if (val == CPUFREQ_PRECHANGE) { ++ mmc_claim_host(cpufreq_host->mmc); ++ clk_disable(cpufreq_host->clk); ++ } else if (val == CPUFREQ_POSTCHANGE) { ++ struct mmc_ios *ios = &cpufreq_host->mmc->ios; ++ if (ios->clock) ++ jz4740_mmc_set_clock_rate(cpufreq_host, ios->clock); ++ if (ios->power_mode != MMC_POWER_OFF) ++ clk_enable(cpufreq_host->clk); ++ mmc_release_host(cpufreq_host->mmc); ++ } ++ return 0; ++} ++ ++static struct notifier_block jz4740_mmc_cpufreq_nb = { ++ .notifier_call = jz4740_mmc_cpufreq_transition, ++}; ++ ++static inline int jz4740_mmc_cpufreq_register(struct jz4740_mmc_host *host) ++{ ++ cpufreq_host = host; ++ return cpufreq_register_notifier(&jz4740_mmc_cpufreq_nb, ++ CPUFREQ_TRANSITION_NOTIFIER); ++} ++ ++static inline void jz4740_mmc_cpufreq_unregister(void) ++{ ++ cpufreq_unregister_notifier(&jz4740_mmc_cpufreq_nb, ++ CPUFREQ_TRANSITION_NOTIFIER); ++} ++ ++#else ++ ++static inline int jz4740_mmc_cpufreq_register(struct jz4740_mmc_host *host) ++{ ++ return 0; ++} ++ ++static inline void jz4740_mmc_cpufreq_unregister(void) ++{ ++} ++ ++#endif ++ + static const struct mmc_host_ops jz4740_mmc_ops = { + .request = jz4740_mmc_request, + .set_ios = jz4740_mmc_set_ios, +@@ -834,11 +889,18 @@ static int jz4740_mmc_probe(struct platf + goto err_free_host; + } + ++ ret = jz4740_mmc_cpufreq_register(host); ++ if (ret) { ++ dev_err(&pdev->dev, ++ "Failed to register cpufreq transition notifier\n"); ++ goto err_clk_put; ++ } ++ + host->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!host->mem) { + ret = -ENOENT; + dev_err(&pdev->dev, "Failed to get base platform memory\n"); +- goto err_clk_put; ++ goto err_cpufreq_unreg; + } + + host->mem = request_mem_region(host->mem->start, +@@ -846,7 +908,7 @@ static int jz4740_mmc_probe(struct platf + if (!host->mem) { + ret = -EBUSY; + dev_err(&pdev->dev, "Failed to request base memory region\n"); +- goto err_clk_put; ++ goto err_cpufreq_unreg; + } + + host->base = ioremap_nocache(host->mem->start, resource_size(host->mem)); +@@ -929,6 +991,8 @@ err_iounmap: + iounmap(host->base); + err_release_mem_region: + release_mem_region(host->mem->start, resource_size(host->mem)); ++err_cpufreq_unreg: ++ jz4740_mmc_cpufreq_unregister(); + err_clk_put: + clk_put(host->clk); + err_free_host: +@@ -958,6 +1022,7 @@ static int jz4740_mmc_remove(struct plat + iounmap(host->base); + release_mem_region(host->mem->start, resource_size(host->mem)); + ++ jz4740_mmc_cpufreq_unregister(); + clk_put(host->clk); + + platform_set_drvdata(pdev, NULL); diff --git a/target/linux/xburst/patches-3.8/0016-ASoC-JZ4740-Support-buffer-size-that-is-not-a-multip.patch b/target/linux/xburst/patches-3.8/0016-ASoC-JZ4740-Support-buffer-size-that-is-not-a-multip.patch new file mode 100644 index 0000000..552f811 --- /dev/null +++ b/target/linux/xburst/patches-3.8/0016-ASoC-JZ4740-Support-buffer-size-that-is-not-a-multip.patch @@ -0,0 +1,89 @@ +From 8a5087fe59e31efb8641e704058328997c3c8ff1 Mon Sep 17 00:00:00 2001 +From: Maarten ter Huurne <maarten@treewalker.org> +Date: Wed, 10 Aug 2011 00:25:11 +0200 +Subject: [PATCH 16/21] ASoC: JZ4740: Support buffer size that is not a + multiple of period size. + +This fixes glitches triggered by libao, which sets time-based intervals +instead of byte-based intervals like SDL does. + +Thanks to Paul Cercueil for figuring out that the buffer size was causing +the glitches and to Lars Clausen for helping me write the fix. +--- + sound/soc/jz4740/jz4740-pcm.c | 21 ++++++++++++++++++--- + 1 files changed, 18 insertions(+), 3 deletions(-) + +--- a/sound/soc/jz4740/jz4740-pcm.c ++++ b/sound/soc/jz4740/jz4740-pcm.c +@@ -31,6 +31,7 @@ + + struct jz4740_runtime_data { + unsigned long dma_period; ++ unsigned long dma_period_left; + dma_addr_t dma_start; + dma_addr_t dma_pos; + dma_addr_t dma_end; +@@ -67,10 +68,13 @@ static void jz4740_pcm_start_transfer(st + if (prtd->dma_pos == prtd->dma_end) + prtd->dma_pos = prtd->dma_start; + +- if (prtd->dma_pos + prtd->dma_period > prtd->dma_end) ++ if (prtd->dma_period_left == 0) ++ prtd->dma_period_left = prtd->dma_period; ++ ++ if (prtd->dma_pos + prtd->dma_period_left > prtd->dma_end) + count = prtd->dma_end - prtd->dma_pos; + else +- count = prtd->dma_period; ++ count = prtd->dma_period_left; + + jz4740_dma_disable(prtd->dma); + +@@ -85,6 +89,7 @@ static void jz4740_pcm_start_transfer(st + jz4740_dma_set_transfer_count(prtd->dma, count); + + prtd->dma_pos += count; ++ prtd->dma_period_left -= count; + + jz4740_dma_enable(prtd->dma); + } +@@ -96,7 +101,8 @@ static void jz4740_pcm_dma_transfer_done + struct snd_pcm_runtime *runtime = substream->runtime; + struct jz4740_runtime_data *prtd = runtime->private_data; + +- snd_pcm_period_elapsed(substream); ++ if (prtd->dma_period_left == 0) ++ snd_pcm_period_elapsed(substream); + + jz4740_pcm_start_transfer(prtd, substream); + } +@@ -133,6 +139,7 @@ static int jz4740_pcm_hw_params(struct s + runtime->dma_bytes = params_buffer_bytes(params); + + prtd->dma_period = params_period_bytes(params); ++ prtd->dma_period_left = 0; + prtd->dma_start = runtime->dma_addr; + prtd->dma_pos = prtd->dma_start; + prtd->dma_end = prtd->dma_start + runtime->dma_bytes; +@@ -160,6 +167,7 @@ static int jz4740_pcm_prepare(struct snd + if (!prtd->dma) + return -EBUSY; + ++ prtd->dma_period_left = 0; + prtd->dma_pos = prtd->dma_start; + + return 0; +@@ -219,6 +227,13 @@ static int jz4740_pcm_open(struct snd_pc + if (prtd == NULL) + return -ENOMEM; + ++ /* Force period and buffer size to be a multiple of the DMA transfer ++ * size, which is 16 bytes. */ ++ snd_pcm_hw_constraint_step(runtime, 0, ++ SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 16); ++ snd_pcm_hw_constraint_step(runtime, 0, ++ SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 16); ++ + snd_soc_set_runtime_hwparams(substream, &jz4740_pcm_hardware); + + runtime->private_data = prtd; diff --git a/target/linux/xburst/patches-3.8/0020-qi_lb60-NAND-add-data-partition.patch b/target/linux/xburst/patches-3.8/0020-qi_lb60-NAND-add-data-partition.patch new file mode 100644 index 0000000..9d45dd8 --- /dev/null +++ b/target/linux/xburst/patches-3.8/0020-qi_lb60-NAND-add-data-partition.patch @@ -0,0 +1,26 @@ +From 1d7ef3445db5aebf48c90b20e18630633623c750 Mon Sep 17 00:00:00 2001 +From: Xiangfu Liu <xiangfu@macbook.(none)> +Date: Fri, 19 Aug 2011 15:46:52 +0800 +Subject: [PATCH 20/21] qi_lb60: NAND: add data partition + +--- + arch/mips/jz4740/board-qi_lb60.c | 7 ++++++- + 1 files changed, 6 insertions(+), 1 deletions(-) + +--- a/arch/mips/jz4740/board-qi_lb60.c ++++ b/arch/mips/jz4740/board-qi_lb60.c +@@ -118,8 +118,13 @@ static struct mtd_partition qi_lb60_part + { + .name = "NAND ROOTFS partition", + .offset = 8 * 0x100000, +- .size = (504 + 512 + 1024) * 0x100000, ++ .size = 512 * 0x100000, + }, ++ { ++ .name = "NAND DATA partition", ++ .offset = 520 * 0x100000, ++ .size = 1528 * 0x100000, ++ }, + }; + + static void qi_lb60_nand_ident(struct platform_device *pdev, diff --git a/target/linux/xburst/patches-3.8/0021-rtc-jz4740-fix-hwclock-give-time-out.patch b/target/linux/xburst/patches-3.8/0021-rtc-jz4740-fix-hwclock-give-time-out.patch new file mode 100644 index 0000000..b696981 --- /dev/null +++ b/target/linux/xburst/patches-3.8/0021-rtc-jz4740-fix-hwclock-give-time-out.patch @@ -0,0 +1,20 @@ +From a37ca6eb8cb52d620feff3323a3be4da24f5bee8 Mon Sep 17 00:00:00 2001 +From: Xiangfu <xiangfu@openmobilefree.net> +Date: Fri, 16 Mar 2012 17:48:45 +0800 +Subject: [PATCH 21/21] rtc: jz4740 fix hwclock give time out + +--- + drivers/rtc/rtc-jz4740.c | 2 ++ + 1 files changed, 2 insertions(+), 0 deletions(-) + +--- a/drivers/rtc/rtc-jz4740.c ++++ b/drivers/rtc/rtc-jz4740.c +@@ -280,6 +280,8 @@ static int jz4740_rtc_probe(struct platf + } + } + ++ jz4740_rtc_ctrl_set_bits(rtc, JZ_RTC_CTRL_1HZ_IRQ, 1); ++ + return 0; + + err_free_irq: diff --git a/target/linux/xburst/qi_lb60/config-3.8 b/target/linux/xburst/qi_lb60/config-3.8 new file mode 100644 index 0000000..1fd421b --- /dev/null +++ b/target/linux/xburst/qi_lb60/config-3.8 @@ -0,0 +1,33 @@ +# CONFIG_BACKLIGHT_CLASS_DEVICE is not set +CONFIG_BACKLIGHT_LCD_SUPPORT=y +CONFIG_INPUT_MATRIXKMAP=y +CONFIG_KEYBOARD_GPIO=y +CONFIG_KEYBOARD_MATRIX=y +CONFIG_LCD_CLASS_DEVICE=y +CONFIG_LCD_ILI8960=y +# CONFIG_LCD_L4F00242T03 is not set +# CONFIG_LCD_LMS283GF05 is not set +# CONFIG_LCD_LTV350QV is not set +# CONFIG_LCD_PLATFORM is not set +# CONFIG_LCD_TDO24M is not set +# CONFIG_LCD_VGG2432A4 is not set +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_CLUT224 is not set +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +CONFIG_REGMAP_SPI=y +CONFIG_SND_HWDEP=y +CONFIG_SND_MIXER_OSS=y +CONFIG_SND_PCM_OSS=y +CONFIG_SND_SEQUENCER=y +# CONFIG_SND_SEQUENCER_OSS is not set +CONFIG_SND_SEQ_DUMMY=y +# CONFIG_SND_VIRMIDI is not set +CONFIG_SOUND_OSS_CORE=y +CONFIG_SOUND_OSS_CORE_PRECLAIM=y +CONFIG_SPI=y +CONFIG_SPI_BITBANG=y +CONFIG_SPI_GPIO=y +CONFIG_SPI_MASTER=y +# CONFIG_USB_FUSB300 is not set +CONFIG_USB_JZ4740=y |